Hey so... I'm not exactly a newbie but I never really play this game long enough at a time to get too deep into it, so I really only just noticed it, buuuut, for some reason my sylestis have no progress on their ability ranks at all. I use them constantly in every fight and I've been using the abilities pretty much the entire time I've used these guys but they're all stuck at 0.00%. So uh, is that abnormal or is it really just that slow?

Attacks only rank up in battles in the Lost Grove and its related areas (caverns and temple).

Additionally, some limited content in festivals (maws of madness, fall fest) provide the ability to rank outside of the Grove.