When I increased my end from 3 to 4, my stat increased but my hp's did not. I had to re-equip my oasis ring to fix it. Those w/o the ring might not be able to increase ... zoneing might work or restarting the game may work as well, I havent tried yet.
Just checked with going to a diff area, zoneing will fix it.
Just checked with going to a diff area, zoneing will fix it.