It's not too big, but when you turn on Arrancar Release and Ressurection and then turn off Arrancar Release while still in ress form you lose all of the stat boosts. It may just be that the stats on the Stats tab revert to normal but you still literally have them, haven't checked. Regardless, the Stats tab shows that the boosts disappear even though you are still in ress form.
P.S. I noticed this bug back in April. It's not that big of a deal I suppose, just thought I'd note it here instead.