yeah.i played the game on a different computer and the progress for the fighter was missing and when i went to the original computer all of it was there. (I typed the progress loss comment on a different computer)
Any ways to get higher max boss power? and if you pick up a heal after you have max health, it should go into an overheal kinda thing. (blue bar over green.)
That's strange you should only lose it on different browser or pc. That data is saved locally now.