Okay I think I just figured it out, and I’m pretty sure it’s just a breakdown in communication. The “J” and “K” button were added a long time ago by request. The caveat at the time was that J and K would only work with generic interactions. The reason being making the entire UI for the game function on just a keyboard is a time consuming process that I haven’t gotten around to yet, ironically I was thinking about it today.
Once you get into any sort of UI you have to use the mouse at the moment. I’ll add something to the keybindings to explain that, it’s sort of something I forgot about as it was added so long ago so that’s on me. Hopefully some time before beta I’ll finish implementing keyboard only mode.