I believe that boarding / entering a vehicles could cause a crash of clients around.
Take a look at situation below.
Me - Pożar - entered a vehicle before Jacob (Person who is recording) and since then something strange happens.
He was seeing me outside vehicle while i was bassically in sterring thge wheel.
When we cross the point of main road jacob was disconnected due to internal error and my game crashes.
Attaching Dump from that moment.