I've wondered about this as well, and would love to understand more about it.
I'm assuming that some may not get reset each time because maybe the keeper didn't use them (ie. I usually have far more enrichment items than the animals need, so perhaps if they only fill the ones to meet the animals hunger needs the rest are left as is?)
But I'm also unclear if different enrichment items work differently. I read/heard somewhere that the pinata may work differently, but don't have any certainty. (May have even just been something from an earlier version that's since been fixed). Or maybe it depends on what mode and difficulty level we're at? I know that hard mode requires more enrichment management than easy, for example.
