Brief

Observed this many times in our "Experimental" realm over the past month, and noticed it was extremely consistent while I was working on building a large map room.

Steps to reproduce:

1. Navigate to a new part of the world
2. Put a boat in the water
3. Move into new chunks
4. Stop moving entirely
5. Exit boat

Actual Results:

Boat disappears

Expected Results:

Boat is in place

Notes:

This was mostly observed in the 1.17.40.0 beta and the build immediately following it. If there is other information I can provide, let me what and how to provide it.