Coming back to the known bug when using tool, while having no SP left, causes loss of HP followed by instant healing (and there is a glitch to the right from HP/SP bars). Here is a pic to remind you:
Whatever the bug looked like, my HP levels were displayed correctly. However, since I learnt health restore skill this bug has shown yet another face: my maximum HP points are not shown properly. After working with a tool with 0 SP, HP bar would often (not always) reverse to 1200 (the starting value for a character). Working with 0SP a bit longer may or may not cause it to go back to the right level (currently I’m on 2000+ HP).
These screenshots show: 1. 1200 HP bar a while after I went down to 0 SP while mining thus activating the bug (I only noticed that after a minute or so and my SP returned to max, but HP stayed bugged); 2. Debug info confirming that my current HP is over 2000 (highlighted in yellow):
I took a dive from high to get some damage and see what happens - and my HP bar came back to normal (and correct) state:
