Critical fix — update from 1.1.0/1.2.0. Standing or jumping on a NON-rotating contraption (a parked ship, a resting free-floating platform) could poison the player's velocity with NaN, freezing them in place and crashing the client. The velocity rotation now skips identity frame-deltas and never writes non-finite velocity.
Requires Sable 2.0+ on NeoForge 1.21.1.