Unmounting entity doesn't work

[abola2]

Affected Product(s)

SpongeVanilla

Version

API 15+, tested on 1.21.10-17.0.0-RC2468

Operating System

Linux

Java Version

21

Plugins/Mods

none

Describe the bug

When a player mounts an entity, unmounting does not work correctly. The player remains mounted and cannot dismount using normal methods. The only way to unmount is by reconnecting to the server.

unmount-bug-compressed.mp4

Link to logs

No response