A followup to this message. I think the problem I’ve been having may be related to the # of overlapping frames. I’ve been able to get past the message by choosing the same number of overlapping frames as the total number of frames to be integrated. So far, I’ve been able to integrate 3, 4, and 5 panels. I tried doing 9, but it failed with a different error (I didn’t take note). And, I don’t have an option to choose more than 9 panels, anyway.
Now, I say I’ve been able to integrate 3, 4, and 5 panels, although that means that it’s completed without any errors. However, it’s not really mosaicing these panels (and the registration isn’t good, either). As I add panels, the mosaic should grow vertically (I’ll end up rotating it 90 degrees). Each of the stacked frames as an aspect ratio of roughly 3:2. So, when I have 2 panels it should be 3:4 (it’s less because of overlap), 5 panels should have an aspect ratio of 3:10 – with some overlap, maybe 3:7 or so. However, virtually all of the integrated mosaics still have aspect ratios of 3:2. So, I think I’m still doing something wrong.
Maybe it’s not handling the slightly elongated stars from the 10 second untracked 50mm subs?