Iirc there's an item limit per "Collect All" claim, so click it some more?
It shouldn't be an intended feature. Ticket nutaku if the issue continues.
It's a 100 items. So if he filled up earlier gift slots with at least a 100+ eidos/wpns, the collect all button won't collect any of the recent non-eido/wpn items. It will only collect items within the oldest 100 items stored in gifts.
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