Ah I didn’t notice that I managed to register some level up clicks at all I just clicked a bunch and it didn’t seem like anything happened :) Perhaps there could be a stronger visual effect too on those that you have leveled up in this session.
It might be that it was easier dancing about in fights with smooth transitions, but it was really hard with instant transitions (that I accidentally turned on and promptly forgot about, or was it enabled from start?)
My gamer brain is also very much “Why you show me text. This looks cool. I want to play and explore.” So I probably didn’t read it that well. If you are going to continue work on the game, I would urge some kind of effect on the portrait that nudges and reminds the player that they have unspent level up points.