I joined a live stream gamer for a 40 racer event. We all ran into some problems with difficulties with the multiplayer races freezing post race or glitching or kicking people out as races started. Here's a video (in 2 parts... thanks Stadia 30 second limits) of one of the times I couldn't get into the race. I ended up completely glitching out with a bizarre backwards 35 graphical glitch. Other players reported being in at least two separate races with a mix of players and AI. At least one other racer had a screen shot of the exact glitch I got.
The entire live stream from C