Is it just me or has anyone else come across unmineable ore veins, especially in Knifepoint Mine. I originally mined the place clean (except for a couple of bugged unmineable veins) on the Boethia quest, now I've gone back in later (more than 30 in game days), all of the ore veins have respawned & yet all veins except a few Iron & one or 2 Corundum are unmineable. There's supposed to be 19 Corundum veins & 5 Iron veins in Knifepoint Mine & all of the veins are visible & have clearly respawned yet there's no option to mine most of them. Has anyone else come across this?

I had a bounty for that cave then got the Boethia quest. So I figured, two birds, one stone, right? Wrong!

I killed the "Bandit Leader" the Bounty quest pointer was indicating, but didn't get a return to whoever gave me the quest message for reward. Then something weird happened when I shot an arrow at Boethia's champion. I somehow "missed", the champion went aggro on all the other bandits, and they went aggro on him, and he killed them.

One stab from my Blade of Sacrifice and he was dead.

But now I've got a bounty I can't collect. I've even gone back inside the camp, it was repopulated, and killed the new bandits there all over again and still no quest completion..

And to answer your question, yes, some of the ore veins were non-mineable and others were. Maybe the others just hadn't hit the reset time yet.

Next playthrough I do will see me complete bounties as soon as I get them.