Hey there.
Sorry if this issue is already known/document somewhere..
After the update to 4.0, some coaster trains do not show up at all in game. The same goes for the ride menu, where I can hover over and select a ride type, but it has no icon at all. When I try to place these rides, they show up as invisible, or in the case of coasters, I can build the coaster, but the trains are invisible. I can use hacks/cheats to use a different vehicle type which shows up fine.
This was not happening to my knowledge at all before the 4.0 update, have been on this setup working fine for some time.
Any help would be greatly appreciated!
OpenRCT2, v0.4.0 (c6302a1)
MacOS 10.15.7 Catalina, running on a hackintosh (i7-7700k, RX580 8GB, ASRock MB)