Fishing station's NBT data is not considering any item input/output
(despite being "added" https://discord.com/channels/159382191292416000/368133674626973696/1270664099562520626 https://discord.com/channels/159382191292416000/368133674626973696/1270666226670108724 )
how it currently looks (horrifying):

how it should look:

maybe it was not added on your version, but only the latest

mb yeah ive forgot to close this after reading that they gave up on 1.20.1 updates (despite it being a really good version??)