Unable to mine?

[SlicingTheMoon]

I hit the wall 15% each time but even after getting to 100% 10 times the cave wall does not break.
I managed before to break the cave walls but it completely stopped now, not a single wall can be broken anymore for some reason.

I am using q 18 stone axe and got 23 str.

[Audiosmurf]

10 times isn't excessive, I've seen it take much longer many times. Sounds to me like you're probably just getting very unlucky, I'd keep trying.

[SlicingTheMoon]

10 times isn't excessive, I've seen it take much longer many times. Sounds to me like you're probably just getting very unlucky, I'd keep trying.

I have tried on 10 different walls, 20-40 tiles away, same thing.

[Audiosmurf]

10 times isn't excessive, I've seen it take much longer many times. Sounds to me like you're probably just getting very unlucky, I'd keep trying.

I have tried on 10 different walls, 20-40 tiles away, same thing.

Small sample size, nonetheless. Spend more time on one individual wall and see if it breaks eventually. If you can whack it for like 20 minutes and it doesn't break maybe it could be a bug.

[MagicManICT]

You're doing it right. Some walls can take 20-30 hits before breaking. Other times it'll break in as few as 3-5 (sometimes fewer). Fresh cave walls that haven't been mined tend to take the more than usual.

The hourglass fills for each hit, then hits when full. If you can't dig at that tile at all, you'll get an error message. If you're not getting an error, it's just a matter of waiting till your character is done or out of stamina.