Steps to reproduce:
Start Arma 3
Go to Editor and open Virtual Reality
Click on Tools in Menu and choose Debug console
Try to execute function
Observed: Game will be unresponsive for a few seconds and then console window can be closed and there will be popup with the error stating "DX11 error : Saving of screenshot to file failed: : E_FAIL", closing the popup window makes function to proceed normally wihout additional errors on screen but it wont save any screenshots and RPT will contain errors for every unit attempted to load and save screen of.
Expected: Function to execute properly and save screenshots to \Documents\Arma3\Screenshots\...