Not sure if this is a known issue or not, but the Spellshot dedication doesn’t seem to be properly giving you the benefits of the Wizard Archetype, so you can take feats that require that, like Basic Wizard Spellcasting.
Sorry to hear this doesn’t seem to be working. I didn’t see anything set up incorrectly so I’ve got a ticket filed for us to look into this further. I appreciate you reporting the issue!
Let me know if doing screenshots would help 