How to repeat problems.
Get any pedestal (display or automated, doesn't matter)
Put item in.
Break pedestal.
Poof your item is gone.

Why doesn't the pedestal drop its inventory? can this be fixed asap?

You know that deadlines is the one thing you should never ask mod developers about?

Anyway looks like the code that spawns itemstacks in the world was borked. I have it fixed in dev and will release soon.

Wow that seemed arrogant of me. The only reason i asked asap is cause I know some of the users on my modpack will break the pedestal and lose the items, i don't mean to rush you. Apologies.

Fixed in the latest release on CF