Like others before it, yokudan motifs are not updating as bought in the journal.
So when searching, if you have legs, it will still say "use to add to your library" even though you have read it.
This has cost me 100k plus in mistakes as I've bought two pieces I didn't need.
So a warning to everyone else and a note to zos, please fix this in the next patch. If we can't have a way to search for a specific motif, or even get a "toggled unknown" for searches, then please fix this as the only current way to search is watch for ones that say "use to learn"
It really is a broken way go search. Please add a few filters to motifs like you do for other items.