I think that might be because you were the host. Did you do any other races after this one? If not, would you be able to share the file Documents/Automobilista 2/log/online.log with me? It gets overwritten when joining another session, so no worries if you raced again after.
Hmm I don't remeber joining another session but it seems it has been overwritten, not much in there.
[22:08:32:009][0x00003030] [Info ] [BLogBase::Init] [Internal] Initialised Log
[22:08:32:016][0x00003030] [Info ] [GameManager::Init] [GameManager] Enumerated 2 local interface addresses:
[22:08:32:016][0x00003030] [Info ] [GameManager::Init] [GameManager] - 0: name=Local Area Connection 2, desc=TAP-Windows Adapter V9, address=169.254.47.54, MTU=1500
[22:08:32:016][0x00003030] [Info ] [GameManager::Init] [GameManager] - 1: name=Ethernet, desc=Realtek PCIe GBE Family Controller, address=192.168.1.6, MTU=1500
[22:08:32:016][0x00003030] [Info ] [SteamSupport::Init] [Steam] Steam initialized
[22:08:32:016][0x00003030] [Info ] [SyncPointManager::Init] [SyncPoint] SyncPointManager Initialised (MaxNodes = 34)
[22:08:32:016][0x00003030] [Info ] [ProgressPointManager::Init] [ProgressPoint] ProgressPointManager Initialised
[22:08:59:522][0x00003030] [Info ] [Authentication::NotifyApp] [Accounts] Logged in!
[22:18:34:347][0x00003030] [Info ] [ProgressPointManager::Term] [ProgressPoint] ProgressPointManager Terminated
[22:18:34:347][0x00003030] [Info ] [SyncPointManager::Term] [SyncPoint] SyncPointManager Terminated
[22:18:34:347][0x00003030] [Info ] [SessionConnectivityMatrix::MemberDisconnected] [SessionNetworking] Session connectivity leaving user RedId 0 slot 0, is local 1, physical member count 0, soft kick count 0
[22:18:34:347][0x00003030] [Info ] [SessionMessageManager::MemberDisconnected] [SessionNetworking] Session networking leaving session
[22:18:34:362][0x00003030] [Info ] [BLogBase::Term] [Internal] Terminating Log