The Hand crafting recipes only apply to the base character if mods that add more characters are loaded before Paracelsin, and example of mods that do this is Multiple Characters (https://mods.factorio.com/mod/multiple-characters)
I've submitted a PR to the source on github that changes the add_player_crafting_categories function to loop over all characters in data.raw.characters rather than just applying to the base character (#10)
nevermind it crashes the game please for the love of god test your prs before sending them i trust them to work immediately if you took the time to code them
I'm really confused as to how it crashed the game as I'm still using it and have been since I sent in the PR, I'm entirely unable to reproduce the crash in my large modlist and in a save with just paracelsin and multiple characters mod, especially with such limited info