Hi, today I saw a Large Wood Box with loot in it decay and it didn't spawn that loot bag you get when destroying a crate yourself.

What kind of box? Can you take a screenshot?

Just a regular player deployed Large Wood Box. It had loot in it, I saw it decay and it did not drop the loot bag with the items.

No loot bag dropped?

Exactly.

Updated

You are fast. Thank you.