No idea what this would be, cannot reproduce on ios, either in inventory or crafting.
It does look like you have an absurd number of favorited items though (2500+) so that may be a contributing factor.
I copied your inventory and favorites to compare though, and still no issue switching between items in inventory/crafting on ios. Switching crafting categories (especially to all/all) is janky with that many favorites though.
Bookmarks