Hi,
I believe there is a bug in AI behaviour editor. When making new script for Aloth, you are unable to choose abilities/spells if game language is set to Polish. If you change language to English, it works perfectly without reloading/restarting/etc
I believe it only happens after Aloth level ups a bit - I was able to see his spells in Port Maje, but no longer in Neketaka. In previous game, I noticed it mid-game too.
https://imgur.com/2rnLpbS polish version
https://imgur.com/ZBhXmX9 same save, english version