Doesn't always happen but sometimes when I drag out tokens the HP bars saved on the tokens will be showing max hp/current hp of an older level of the character token (example new level token is 27 hit points, sometimes it will be showing as 11/11 HP, the way to fix it is to open the sheet look at the CORE PAGE where the new hit points are, then drag out the token again. However, I'd prefer if I didn't have to do that obviously, and sometimes I don't realize the token is showing old hit points.