I've come across two glitches/issues so far. One is visual and the other is a definite gameplay concern. I encountered these in 2048.

Visual;

Contrails sometimes glitch out and are displaced or only show on one side. Happens all the time in Zone mode. It's slightly distracting and annoys the heck out of me, but not gamebreaking.


Gameplay;

I'm consistently glitching out of the map at the end of one of the tracks in Zone mode. I'll have to go find the name because I can't remember it, but it's the one with the finicky little left-right, left-right bumpy part at the start that's super-narrow and annoying. It also has a raised train track/monorail section as a side-path/shortcut. The very last speed pad on the circuit (on the 'normal' path and not the upper side-path) had a tendency to clip the craft under it at high speed; it happened to me twice in a row and around 4 times in the run I did.

I also bounced accidentally going up the side-route half-way through the track (that goes along the monorail) and was sent airborne for a good ten/fifteen seconds before landing OOB and being reset.


I was streaming at the time so I wasn't able to record it locally, though I (or someone else) could go through the stream recordings and find it.



Side-comment

A friend has also told me that some of the graphical effects (namely the equaliser effects) are missing in the backgrounds in Zone mode too. Deliberate game choice or accidentally left out? Huh...