This sucks, I am sorry that happend another miner....
From posts it seems tt gear trick may work sometimes, which is a good information after all. Problem is what to do when it doesn't help.
As far as I remember Jeff had same problem and
MA said that they will do nothing as some resources can be impossible to extract because they can be "stucked under tree or stone". It is like when you get a claim on the mountain you can't climb.
I one time had a claim in LA far SW of Oshiri (it was merp LA that time) and it all seemed fine. Just that claim was inside or under the mountain and it wasn't one of those created the way you can vanish through... I was standing directly on the given cords, on the mountain, and claim was 40m below....
Fortunately it was only size III, but such things can be realy annoying.