Zbynek
I have seen this problem/bug on my Mac in 1.7 or 1.69, with the ImageCalibration module.
If I have several, say 14 CR2 files to Cal and only select one file at the end of the list it finishes the module, if I select the second or third file from the end of the list it still works. When I select a file earlier in the list, say the forth from the end, the process hangs every time and can be recovered from by the Pause/Abort button in the Process Console window, as you have pointed out. Also it doesn’t make any difference if you select Continue, Abort or Ask User in the On Error window. I guess it’s a known bug at the end of a list of problems that Juan knows about. 8>)
Cleon