Version: create-mc1.16.5_v0.3.1
Other mods: None
Issue:
In previous versions of Create, I could safely move spawners using minecart contraptions, then disable them in my spawn rooms by rotating them out of starting position and thus no longer being blocks. However, after updating to latest version today, the spawners are now being wiped of metadata, showing the default pig model and not spawning anything.
Expectation: Spawners to retain their metadata when reverting to block from contraption.

Thanks for the report, this was addressed in 0.3.1a
Please re-open if the issue persists. Cheers!~