Player is not sitting in the vehicle. It seems player is falling.
I needed to drive skimmer, spawning it on road is not a good idea. So I jumped to sea. Before falling in the sea, I typed /getveh and safely get inside the skimmer, but not seated.
But after driving the skimmer for some time, I found that my player is sitting comfortably inside. Reproducible
AlwaysWhat you were doing when the bug happened
Used /getveh while jumping. What you think caused the bug
Simply saying client does not handle this case or so.Screenshot