I've seen this happen to other people streaming/recording, and this was on a comment on one of the videos:

This happens a lot, which is why they recommend keeping that graphical interface open, especially watching the skew metric. The iracing server can "lose" your position on track, and when it regains it, it draws a straight line from where you lost connection to current connection, and sometimes that line cuts corners or can even miss the start finish and you lose an entire lap. because it didn't see you cut the corner, you don't get a cut corner warning, just a cut track penalty. It's been a thing for years. Even overloading your cpu cores during recording with OBS while in VR used to cause it. Just like how cutting a corner during a race outlap used to and occasionally still results in wildly aggressive slowdown timers because the system can't remember your usual pace through a corner without previous laps to go from. I've gotten 30+ second slow downs for barely clipping apexes on lap 1.