I just took a look, I have a robust page changing, could it be possible that your controller have ghosts inputs (very close button press) I'm using the same template from the last update (using hmijmap files) and stock arduino sketch on arduino micro.
I will try to add an additional debouncing for safety as it should not make it crash, but I guess it's the root cause. Do you have the log files ? Page changing and timings are logged so it would be easy to see it. (Log files are available in C:\Program Files (x86)\SimHub\Logs)
this?
[2019-04-07 16:52:41,401] INFO - Starting SimHub v6.7.7 (build time : 20/03/2019 10:29:16)
[2019-04-07 16:52:41,408] INFO - Administrator privileges : True
[2019-04-07 16:52:41,412] INFO - OS version : Microsoft Windows NT 6.2.9200.0, Windows 10.0.17134
[2019-04-07 16:52:41,412] INFO - Donator License status : Licensed
[2019-04-07 16:52:41,412] INFO - Process priority : Normal
[2019-04-07 16:52:42,954] INFO - (Re)Starting AssettoCorsa Game Manager and plugin manager
[2019-04-07 16:52:42,959] INFO - Creating Assetto Corsa game manager (ACSharedMemory.ACManager)
[2019-04-07 16:52:42,979] INFO - AssettoCorsa game manager created
[2019-04-07 16:52:42,980] INFO - Creating plugin manager
[2019-04-07 16:52:43,560] INFO - Loading font list
[2019-04-07 16:52:43,979] INFO - AC shared memory connected
[2019-04-07 16:52:44,025] INFO - Starting Arduino in Single USB mode
[2019-04-07 16:52:44,051] INFO - Matrix custom font SQUARE-LARGE8x8 loaded
[2019-04-07 16:52:44,142] INFO - Web suggested IP :192.168.1.2
[2019-04-07 16:52:44,151] INFO - Font list loading successful
[2019-04-07 16:52:44,186] INFO - Web font-faces up to date
[2019-04-07 16:52:44,187] INFO - Loading plugins controls
[2019-04-07 16:52:45,086] INFO - AC process found
[2019-04-07 16:52:45,101] INFO - Game successfully loaded
[2019-04-07 16:52:45,170] INFO - Game connected
[2019-04-07 16:52:45,284] INFO - All time best found : 00:04:33.2560000 recorded at 4/6/2019 8:42:22 PM
[2019-04-07 16:52:45,556] INFO - USBD480 : Found 0 display(s)
[2019-04-07 16:52:45,575] INFO - Loading Nextion mapping data file NextionTemplate\DASH_4.3599XX.HMISTRUCT
[2019-04-07 16:52:45,635] WARN - Unable to find page virtmessage for role attribution in nextion definition
[2019-04-07 16:52:45,636] WARN - Unable to find page gamevolumechanged for role attribution in nextion definition
[2019-04-07 16:52:45,636] WARN - Unable to find page sessionstarted for role attribution in nextion definition
[2019-04-07 16:52:45,636] WARN - Unable to find page rpmalerttriggerchanged for role attribution in nextion definition
[2019-04-07 16:52:45,636] WARN - Unable to find page newlap for role attribution in nextion definition
[2019-04-07 16:52:45,636] WARN - Unable to find page sessionbestlap for role attribution in nextion definition
[2019-04-07 16:52:45,636] WARN - Unable to find page alltimebestlap for role attribution in nextion definition
[2019-04-07 16:52:45,636] WARN - Nextion component(s) global.fft1, global.fft2, global.fft3, global.fft4, global.fft5, global.fft6, global.fft7, global.fft8, global.fft9, global.fft10, global.audiol, global.audior, global.clock, global.mrpmbar1, global.mrpmbar2, global.rpmbar1, global.fuel, global.abs, global.turbobar, global.rpm, global.deltapbl, global.deltapbr, global.lastlapdel, laphistory.l1, laphistory.del1, laphistory.l2, laphistory.del2, laphistory.l3, laphistory.del3, laphistory.l4, laphistory.del4, laphistory.l5, laphistory.del5, telemetry.rpmgraph, telemetry.turbograph, system.volp, system.volm, printer.tmpbed, printer.tmphotend, printer.progressper, printer.remtime, gamevolumechanged.icon, gamevolumechanged.line1, gamevolumechanged.line2, rpmalerttriggerchanged.icon, rpmalerttriggerchanged.line1, rpmalerttriggerchanged.line2, sessionstarted.line1, sessionstarted.icon, newlap.line1, newlap.line2, newlap.line3, newlap.icon not found in nextion definition
[2019-04-07 16:52:45,636] INFO - Nextion mapping data file NextionTemplate\DASH_4.3599XX.HMISTRUCT loaded
[2019-04-07 16:52:45,640] INFO - Connecting to Nextion on COM31
[2019-04-07 16:52:45,796] INFO - Nextion connected on COM31 (115200bauds)
[2019-04-07 16:52:45,796] INFO - Setting touchmode on Nextion connected on COM31
[2019-04-07 16:52:45,797] INFO - Setting current page to 0 on Nextion connected on COM31
[2019-04-07 16:52:46,303] INFO - Creating Nextion worker, latency 20ms
[2019-04-07 16:52:49,293] INFO - Action 'NextionTemplateParser.nextion1_NextPage' triggered after input: NextionTemplateParser.nextion1_NextPage, JoystickPlugin.Arduino_Leonardo_1_B05
[2019-04-07 16:52:49,462] INFO - Action 'NextionTemplateParser.nextion1_NextPage' triggered after input: NextionTemplateParser.nextion1_NextPage, JoystickPlugin.Arduino_Leonardo_1_B05
[2019-04-07 16:52:50,528] INFO - Action 'NextionTemplateParser.nextion1_PreviousPage' triggered after input: NextionTemplateParser.nextion1_PreviousPage, JoystickPlugin.Arduino_Leonardo_1_B00
[2019-04-07 16:52:50,675] INFO - Action 'NextionTemplateParser.nextion1_PreviousPage' triggered after input: NextionTemplateParser.nextion1_PreviousPage, JoystickPlugin.Arduino_Leonardo_1_B00
[2019-04-07 16:52:52,097] INFO - Action 'NextionTemplateParser.nextion1_NextPage' triggered after input: NextionTemplateParser.nextion1_NextPage, JoystickPlugin.Arduino_Leonardo_1_B05
[2019-04-07 16:52:52,327] INFO - Action 'NextionTemplateParser.nextion1_NextPage' triggered after input: NextionTemplateParser.nextion1_NextPage, JoystickPlugin.Arduino_Leonardo_1_B05
[2019-04-07 16:52:54,064] INFO - Action 'NextionTemplateParser.nextion1_PreviousPage' triggered after input: NextionTemplateParser.nextion1_PreviousPage, JoystickPlugin.Arduino_Leonardo_1_B00
[2019-04-07 16:52:54,231] INFO - Action 'NextionTemplateParser.nextion1_PreviousPage' triggered after input: NextionTemplateParser.nextion1_PreviousPage, JoystickPlugin.Arduino_Leonardo_1_B00
[2019-04-07 16:52:55,654] INFO - Action 'NextionTemplateParser.nextion1_NextPage' triggered after input: NextionTemplateParser.nextion1_NextPage, JoystickPlugin.Arduino_Leonardo_1_B05
[2019-04-07 16:52:55,801] INFO - Action 'NextionTemplateParser.nextion1_NextPage' triggered after input: NextionTemplateParser.nextion1_NextPage, JoystickPlugin.Arduino_Leonardo_1_B05
[2019-04-07 16:52:56,975] INFO - Action 'NextionTemplateParser.nextion1_PreviousPage' triggered after input: NextionTemplateParser.nextion1_PreviousPage, JoystickPlugin.Arduino_Leonardo_1_B00
[2019-04-07 16:52:57,122] INFO - Action 'NextionTemplateParser.nextion1_PreviousPage' triggered after input: NextionTemplateParser.nextion1_PreviousPage, JoystickPlugin.Arduino_Leonardo_1_B00
[2019-04-07 16:52:58,461] INFO - Action 'NextionTemplateParser.nextion1_NextPage' triggered after input: NextionTemplateParser.nextion1_NextPage, JoystickPlugin.Arduino_Leonardo_1_B05
[2019-04-07 16:52:58,628] INFO - Action 'NextionTemplateParser.nextion1_NextPage' triggered after input: NextionTemplateParser.nextion1_NextPage, JoystickPlugin.Arduino_Leonardo_1_B05
[2019-04-07 16:52:59,653] INFO - Action 'NextionTemplateParser.nextion1_PreviousPage' triggered after input: NextionTemplateParser.nextion1_PreviousPage, JoystickPlugin.Arduino_Leonardo_1_B00
[2019-04-07 16:52:59,821] INFO - Action 'NextionTemplateParser.nextion1_PreviousPage' triggered after input: NextionTemplateParser.nextion1_PreviousPage, JoystickPlugin.Arduino_Leonardo_1_B00
[2019-04-07 16:53:00,763] INFO - Action 'NextionTemplateParser.nextion1_NextPage' triggered after input: NextionTemplateParser.nextion1_NextPage, JoystickPlugin.Arduino_Leonardo_1_B05
[2019-04-07 16:53:00,909] INFO - Action 'NextionTemplateParser.nextion1_NextPage' triggered after input: NextionTemplateParser.nextion1_NextPage, JoystickPlugin.Arduino_Leonardo_1_B05
[2019-04-07 16:53:01,976] INFO - Action 'NextionTemplateParser.nextion1_PreviousPage' triggered after input: NextionTemplateParser.nextion1_PreviousPage, JoystickPlugin.Arduino_Leonardo_1_B00
[2019-04-07 16:53:02,165] INFO - Action 'NextionTemplateParser.nextion1_PreviousPage' triggered after input: NextionTemplateParser.nextion1_PreviousPage, JoystickPlugin.Arduino_Leonardo_1_B00
[2019-04-07 16:53:03,189] INFO - Action 'NextionTemplateParser.nextion1_NextPage' triggered after input: NextionTemplateParser.nextion1_NextPage, JoystickPlugin.Arduino_Leonardo_1_B05
[2019-04-07 16:53:03,833] INFO - Action 'NextionTemplateParser.nextion1_NextPage' triggered after input: NextionTemplateParser.nextion1_NextPage, JoystickPlugin.Arduino_Leonardo_1_B05
[2019-04-07 16:53:04,152] INFO - Action 'NextionTemplateParser.nextion1_NextPage' triggered after input: NextionTemplateParser.nextion1_NextPage, JoystickPlugin.Arduino_Leonardo_1_B05
[2019-04-07 16:53:06,098] INFO - Action 'NextionTemplateParser.nextion1_PreviousPage' triggered after input: NextionTemplateParser.nextion1_PreviousPage, JoystickPlugin.Arduino_Leonardo_1_B00
[2019-04-07 16:53:06,265] INFO - Action 'NextionTemplateParser.nextion1_PreviousPage' triggered after input: NextionTemplateParser.nextion1_PreviousPage, JoystickPlugin.Arduino_Leonardo_1_B00
[2019-04-07 16:53:07,227] INFO - Action 'NextionTemplateParser.nextion1_NextPage' triggered after input: NextionTemplateParser.nextion1_NextPage, JoystickPlugin.Arduino_Leonardo_1_B05
[2019-04-07 16:53:07,394] INFO - Action 'NextionTemplateParser.nextion1_NextPage' triggered after input: NextionTemplateParser.nextion1_NextPage, JoystickPlugin.Arduino_Leonardo_1_B05
[2019-04-07 16:53:08,295] INFO - Action 'NextionTemplateParser.nextion1_NextPage' triggered after input: NextionTemplateParser.nextion1_NextPage, JoystickPlugin.Arduino_Leonardo_1_B05
[2019-04-07 16:53:08,441] INFO - Action 'NextionTemplateParser.nextion1_NextPage' triggered after input: NextionTemplateParser.nextion1_NextPage, JoystickPlugin.Arduino_Leonardo_1_B05
[2019-04-07 16:53:09,550] INFO - Action 'NextionTemplateParser.nextion1_NextPage' triggered after input: NextionTemplateParser.nextion1_NextPage, JoystickPlugin.Arduino_Leonardo_1_B05
[2019-04-07 16:53:09,717] INFO - Action 'NextionTemplateParser.nextion1_NextPage' triggered after input: NextionTemplateParser.nextion1_NextPage, JoystickPlugin.Arduino_Leonardo_1_B05
[2019-04-07 16:53:10,699] INFO - Action 'NextionTemplateParser.nextion1_PreviousPage' triggered after input: NextionTemplateParser.nextion1_PreviousPage, JoystickPlugin.Arduino_Leonardo_1_B00
[2019-04-07 16:53:10,867] INFO - Action 'NextionTemplateParser.nextion1_PreviousPage' triggered after input: NextionTemplateParser.nextion1_PreviousPage, JoystickPlugin.Arduino_Leonardo_1_B00
[2019-04-07 16:53:11,997] INFO - Action 'NextionTemplateParser.nextion1_PreviousPage' triggered after input: NextionTemplateParser.nextion1_PreviousPage, JoystickPlugin.Arduino_Leonardo_1_B00
[2019-04-07 16:53:12,164] INFO - Action 'NextionTemplateParser.nextion1_PreviousPage' triggered after input: NextionTemplateParser.nextion1_PreviousPage, JoystickPlugin.Arduino_Leonardo_1_B00
[2019-04-07 16:53:19,666] INFO - Application exit
[2019-04-07 16:53:19,688] INFO - Stopping game manager
[2019-04-07 16:53:19,690] INFO - Stopping plugin manager
[2019-04-07 16:53:19,692] INFO - Saving plugin settings SimHub.Plugins.DataPlugins.DataCore.DataCorePlugin
[2019-04-07 16:53:19,693] INFO - SimHub.Plugins.DataPlugins.DataCore.DataCorePlugin plugin settings saved
[2019-04-07 16:53:19,693] INFO - Saving plugin settings SimHub.Plugins.DataPlugins.ShakeIt.ShakeItBassShakersPlugin
[2019-04-07 16:53:19,711] INFO - SimHub.Plugins.DataPlugins.ShakeIt.ShakeItBassShakersPlugin plugin settings saved
[2019-04-07 16:53:19,711] INFO - Saving plugin settings SimHub.Plugins.DataPlugins.ShakeIt.ShakeItPlugin
[2019-04-07 16:53:19,714] INFO - SimHub.Plugins.DataPlugins.ShakeIt.ShakeItPlugin plugin settings saved
[2019-04-07 16:53:19,714] INFO - Saving plugin settings SimHub.Plugins.DataPlugins.UDPRelay.UDPRelayPlugin
[2019-04-07 16:53:19,714] INFO - SimHub.Plugins.DataPlugins.UDPRelay.UDPRelayPlugin plugin settings saved
[2019-04-07 16:53:19,714] INFO - Saving plugin settings SimHub.Plugins.OutputPlugins.GraphicalDash.GraphicalDashPlugin
[2019-04-07 16:53:19,719] INFO - SimHub.Plugins.OutputPlugins.GraphicalDash.GraphicalDashPlugin plugin settings saved
[2019-04-07 16:53:19,719] INFO - Saving plugin settings SimHub.Plugins.OutputPlugins.Dash.SerialDashPlugin
[2019-04-07 16:53:19,720] INFO - SimHub.Plugins.OutputPlugins.Dash.SerialDashPlugin plugin settings saved
[2019-04-07 16:53:19,720] INFO - Saving plugin settings SimHub.Plugins.OutputPlugins.Nextion.NextionPlugin
[2019-04-07 16:53:19,722] INFO - SimHub.Plugins.OutputPlugins.Nextion.NextionPlugin plugin settings saved
[2019-04-07 16:53:19,722] INFO - Stopping plugin SimHub.Plugins.DataPlugins.DataCore.DataCorePlugin
[2019-04-07 16:53:19,722] INFO - Stopping plugin SimHub.Plugins.DataPlugins.PersistantTracker.PersistantTrackerPlugin
[2019-04-07 16:53:19,725] INFO - Stopping plugin SimHub.Plugins.AudioControl.AudioControlPlugin
[2019-04-07 16:53:19,775] INFO - Stopping plugin SimHub.Plugins.DataPlugins.Thrustmaster.ThrustmastersPlugin
[2019-04-07 16:53:19,776] INFO - Stopping plugin SimHub.Plugins.DataPlugins.SystemInfo.AfterburnerPlugin
[2019-04-07 16:53:19,777] INFO - Stopping plugin SimHub.Plugins.DataPlugins.SystemInfo.SystemInfoPlugin
[2019-04-07 16:53:19,777] INFO - Stopping plugin SimHub.Plugins.DataPlugins.ShakeIt.ShakeItBassShakersPlugin
[2019-04-07 16:53:19,777] INFO - Stopping plugin SimHub.Plugins.DataPlugins.ShakeIt.ShakeItPlugin
[2019-04-07 16:53:19,778] INFO - Stopping plugin SimHub.Plugins.DataPlugins.Shell.ShellPlugin
[2019-04-07 16:53:19,778] INFO - Finalizing plugin SimHub.Plugins.DataPlugins.Shell.ShellPlugin
[2019-04-07 16:53:19,778] INFO - Stopping plugin SimHub.Plugins.InputPlugins.JoystickPlugin
[2019-04-07 16:53:19,779] INFO - Stopping plugin SimHub.Plugins.DataPlugins.UDPRelay.UDPRelayPlugin
[2019-04-07 16:53:19,779] INFO - Stopping plugin SimHub.Plugins.DataPlugins.Logitech.HeadsetInfo
[2019-04-07 16:53:19,779] INFO - Stopping plugin SimHub.Plugins.KeyboardEmulator.KeyboardEmulatorPlugin
[2019-04-07 16:53:19,779] INFO - Stopping plugin SimHub.Plugins.OutputPlugins.GraphicalDash.GraphicalDashPlugin
[2019-04-07 16:53:19,780] INFO - Finalizing plugin SimHub.Plugins.OutputPlugins.GraphicalDash.GraphicalDashPlugin
[2019-04-07 16:53:19,780] INFO - Stopping plugin SimHub.Plugins.OutputPlugins.Dash.SerialDashPlugin
[2019-04-07 16:53:19,781] INFO - Stopping plugin SimHub.Plugins.OutputPlugins.Nextion.NextionPlugin
[2019-04-07 16:53:19,783] INFO - Stopping plugin SimHub.Plugins.Web.WebPlugin
[2019-04-07 16:53:19,783] INFO - Finalizing plugin SimHub.Plugins.Web.WebPlugin
[2019-04-07 16:53:19,783] INFO - Stopped all plugins
[2019-04-07 16:53:19,783] INFO - Performance dump
[2019-04-07 16:53:19,783] INFO - SimHub.Plugins.DataPlugins.PersistantTracker.PersistantTrackerPlugin:
ataUpdate 2043calls 97ms 2043calls 0.000ms/call
[2019-04-07 16:53:19,783] INFO - SimHub.Plugins.OutputPlugins.Dash.SerialDashPlugin:
ataUpdate 2043calls 54ms 2043calls 0.000ms/call
[2019-04-07 16:53:19,783] INFO - SimHub.Plugins.OutputPlugins.GraphicalDash.GraphicalDashPlugin:
ataUpdate 2043calls 143ms 2043calls 0.000ms/call
[2019-04-07 16:53:19,783] INFO - SimHub.Plugins.DataPlugins.SystemInfo.AfterburnerPlugin:
ataUpdate 2043calls 0ms 2043calls 0.000ms/call
[2019-04-07 16:53:19,784] INFO - SimHub.Plugins.DataPlugins.SystemInfo.SystemInfoPlugin:
ataUpdate 2043calls 0ms 2043calls 0.000ms/call
[2019-04-07 16:53:19,784] INFO - SimHub.Plugins.DataPlugins.DataCore.DataCorePlugin:
ataUpdate 2043calls 22ms 2043calls 0.000ms/call
[2019-04-07 16:53:19,784] INFO - SimHub.Plugins.Web.WebPlugin:
ataUpdate 2043calls 51ms 2043calls 0.000ms/call
[2019-04-07 16:53:19,784] INFO - MultipleSerialDashPlugin::WorkerLoop 2043calls 1ms 2043calls 0.000ms/call
[2019-04-07 16:53:19,784] INFO - SimHub.Plugins.DataPlugins.ShakeIt.ShakeItPlugin:
ataUpdate 2043calls 1ms 2043calls 0.000ms/call
[2019-04-07 16:53:19,784] INFO - SimHub.Plugins.AudioControl.AudioControlPlugin:
ataUpdate 2043calls 18ms 2043calls 0.000ms/call
[2019-04-07 16:53:19,784] INFO - SimHub.Plugins.DataPlugins.ShakeIt.ShakeItBassShakersPlugin:
ataUpdate 2043calls 27ms 2043calls 0.000ms/call
[2019-04-07 16:53:19,784] INFO - JoystickPlugin:
ollThread 1723calls 27ms 1723calls 0.000ms/call
[2019-04-07 16:53:19,784] INFO - JoystickManager:
etectJoysticks 1calls 112ms 1calls 112.000ms/call
[2019-04-07 16:53:19,784] INFO - SimHub.Plugins.OutputPlugins.Nextion.NextionPlugin:
ataUpdate 2043calls 2ms 2043calls 0.000ms/call
[2019-04-07 16:53:19,784] INFO - SimHub.Plugins.DataPlugins.Thrustmaster.ThrustmastersPlugin:
ataUpdate 2043calls 0ms 2043calls 0.000ms/call
[2019-04-07 16:53:19,784] INFO - Final Exit