[DX11 Crash Issue]

Nope.  Adding -dx9 to the command line doesn't stop the game crashing when I boot it up.

Edit - Nevermind.  I'm an idiot.  Was adding -dx9 to the wrong shortcut.

[Is there a limit to how many boneskinner vial one can get per day / week?]

I wrote to support about this, provided proof that I'd done the strike and got no vials they did replace the ones I should have gotten last night. They did say that they need folks to bug report this in game. So if you do boneskinner more and continue to not get the drops, submit a bug report in-game. Hopefully they'll fix this soon.