Hi, during a private championship race all the people having new v1.5 installed at the stop had to manually set parameters, in other words pitconfig didn't apply settings.
I've just reproduced the bug, this time I couln't even get pit stop working at all: I normally selected tyres, fuel and repairs in the window, but after I clicked the apply button nothing happened, the game just let me go and get back on circuit. I have a video about that, if you're interested in seeing what happened on board on my client let me know and I'll send you a link.
Attached you can find logs, both client and server, together with cfg files used on the server. If you need any other information just let me know.
In the meanwhile I have to downgrade to v1.4, that worked just fine for me and other people racing with me (all of them).