I discovered this today. After drilling a board, I then went to do an aligned print. The software asked if I wanted to reuse the alignment, and I did. However, during the confirm alignment step, no matter what feature I select it results in the app clearing the screen and hanging indefinitely. I restarted the app and tried several different ‘confirm’ points just to be sure. In the end, I had to discard the alignment and realign. At that point, the confirm alignment step still failed in the same way. In the end, I had to just assume that the kept alignment was a good one, but I expect that this is going to cause me problems when trying to print the other side of the board. I suspect I’m going to just have to do the alignment and hope for the best when printing the other side.