As I was playing survival on a flat world, I noticed a bat (it spawned during the night) flying around in the sitting position without its flying animation.
I checked with my friend who was on the server, and the bat animation was not working for him either.
Possibly multiplayer-only.
Unfortunately, I don't have a screenshot of it (and, frankly, I'm too lazy to relaunch Minecraft to get one).
Recreate this bug by creating a flat world and spawning a bat. (It might only happen with naturally-spawning bats, though.)
Basically, MCCE-5302 is happening on Java Edition.
Thank you for your report!
We're tracking this issue in MC-256882, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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