I am trying to align a group of astro stacks (about 100 shots, masked) and Photoshop is stuck at:
The progress bar did move to this point in less than a minute, and has been stuck at this exact point about 30 minutes. Activity Monitor does show that Photoshop is using 100% CPU though.
Is it stuck, or is it just the progress bar that's not updating correctly and I should wait? This happened to me yesterday and it was stuck at that exact point too and I had to kill Photoshop and start over, now it's the same again.
I am on latest Photoshop 2015.5, MacBook Pro Retina mid-2014, 512GB internal SSD with ~300GB available, 480GB USB 3.0 external SSD ~300GB available and both are used as scratch disks, over 7GB of RAM allocated to Photoshop, so I don't think it's a resource issue. I've done astro stacks before and never encountered such problem.
Here is one of the about 100 stacked images:
UPDATE: It has been 4 hours and the progress bar is still stuck and Photoshop is still at 100%, interesting, as it must be doing something.