Hello, I saw this 2 or 3 times a couple days ago (100% at the time). I looked for other bug reports but didn't see anything that matched.
Bug: Boarding a player controlled boat leads to very strange behavior, sometimes resulting in being stuck in the boat (see videos).
Notes:
* I don't think the boats were placed by people in my group, but were set to public. I have a strong feeling this is related, as I have boarded many group boats without issue.
* If you watch my log during the process you can see the point where it tells me I can't jump because I am on a boat, but I can't disembark because I'm not on a boat.
* I wasn't experiencing any lag, so I don't think that is related to the big delays between updates in my location.
Video 1: https://youtu.be/gBOVBgTRnsY
Video 2: https://youtu.be/UCvFqJVFuOk