I have loaded three and four image files to multiple layers. They are DNG raw files taken directly from the file folder or sent to Photoshop from LR CC. Either way, the auto align function works fine. The auto blend function using the stack method will freeze after starting the process several seconds into the process and remains frozen. I tried turning off the GPU performance enhancement just to see if any difference. My PC has 32gb of RAM, and hi capacity and power set up. I've rebooted that multiple times, nothing is making a difference, the freeze occurs at the same time in the process even when using completely different sets of images.
Thank you so much! That was it exactly. My default settings were cache level of one, so I changed it to cache level 4 and it works quickly and correctly!
I am glad that it worked for you.