Observed/Actual behavior
The server kicks the player for "Flying is not enabled on this server" when reproducing the bug.
Expected behavior
The server should NOT kick the player.
Steps/models to reproduce
Ensure you have
allow-flightset to false in server.properties, and you are in survival mode.Ride your horse to the Happy Ghast. Make sure to jump, not just riding.
Wait a few seconds.
The server kicks you for "Flying is not enabled on this server".
I can confirm this behaviour. The server output log says:
The latest.log prints: