This error spams on the console for lots of different players. I'm not usre if this is linked but we get Vehicle and trailer issues. Vehicles jumping / flying and trailers disappearing etc.
#> Transition's target state "turning" not supported by parent: "turningmovement180"
prisma flax
grim crane
This error happens, in my experience, to users who run dedicated servers (it appears in the server console) every time a player makes a 180‑degree rotation… meaning when they change direction. If they do it 50 times, those bugs will appear 50 times in the command console. It’s better to report these kinds of bugs on the Indie Stone forum. I didn’t report it because my server has one translation mod. You should try to replicate it, if you can, on a new server without mods and report it.
I think it started in build 42.16 (it didn’t start in 42.17).
And the same issue still persists, even though I updated my server from 42.16 to 42.17. Because of that, it wouldn’t be valid for me to report it either. To report it properly, you would need to verify it on a fresh, clean server created from scratch in 42.17.