I don’t think I mentioned this, but do check the OP post for the Burn Manager Script as it also details some limits imposed on the unburning-reburning of items. (if you choose to use this 
)
I can’t remember the details, but something about a grace-period of sorts, so no unburning one day, then reburning the items, but then wanting to unburn them again in too short timespan. - I can’t remember the details, but just check @rfindley 's OP post for updated info! 
or just ask them!