When leveling up a character, I should be able to increase my experiences only once per tier while being able to increase my HP slots twice per tier however this is working in reverse. I am able to increase my experience multiple times at higher tiers while I can only increase my hit point slots one time.
Thanks for the report, I’ll pass it along to the dev team so we can see about getting that corrected.
This should now be fixed! If you notice anything else weird please let us know.