Boats disappear when you exit

Seed: -197586509 (Experimental ON); Survival Mode; Normal Difficulty; Infinite Size; world created in Beta v1.17.40.20.

Steps to Reproduce:
1. Enter a boat and travel across a body of water
2. Stop and Exit the boat

Observed Results: Minecraft Bedrock v1.17.40.20 Beta, boat disappears, see attached videos.
Expected Results: Boat is still visible

Workaround: sometimes you can exit the boat while it is still moving, and it will not disappear.