Health bar stopped regenerating for at least 30 seconds with full hunger bar and 4 hearts health in a normal generated single player world, after getting damage mainly from drowning, at difficulty normal (i didn't change it, it was the first login).
The health bar only started regenerating again, after jumping in order to loose (and therefore update) hunger bar and eating again, which wasn't possible before (but maybe, loosing hunger points already solved the issue).
I was inside a boat, when i recognized the issue, but don't remember, if it happend inside the boat and if the prior event was me getting damage or eating something.
I didn't try to resolve the issue by loosing even more health or restarting the game/relogging into the world.
I tried to replicate the bug in a new creative world (in survival mode), but wasn't able to do so.
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