UPDATE FROM MABULA
I have had a very rough 2 months unfortunately health wise. I was struck 3x in a row with bacterial infections. The second infection occurred  after a routine hospital checkup and I became very sick. I had to rest and take a lot of antibiotics. Once I was recovering and restarting work 1 month ago, I again became sick. The infection was not yet gone, so even more antibiotics and rest was needed. Needless to say, it took a lot of my energy and I needed a lot of rest.
Finally, the infection is really gone and my energy is coming back step-by-step now and I have started work again. I am terribly sorry to have kept you waiting for support. I will address all outstanding questions and e-mails step-by step and will be on the forum daily from today.
APP 2.0.0-beta47 will come soon as well, a lot of work was already completed before I became very ill, so the release is also nearly ready for you. Beta47 will be much faster actually. Many workflows will be more than 2x faster, mosaics can even be 10x faster than before because registration really received a major boost... all compared to beta46. Â Before I release it, I will make sure that everything is working properly and then I will release it.
When I do stacking of files from a single session, I use all the default settings in APP. But what if I stack 2 or more integrated files? Can I still use all the default settings? I am worried that the raw files used in each stack have already been processed in some way, so if I use all the default settings a second processing will happen, which may not be desirable.
Also, when I stack integrated files do I go through all the same steps as when I process the raw files initially? That is, do I read in each integrated file as a "light," then calibrate, analyze stars, etc? Or should I handle the set of integrated files in some different way?
If your original stacks already had "same camera and optics" checked in registration make sure to uncheck that. Other than than I stack integrated stacks often, especially in mosaics. Just load the various integrations as lights and have at it.
Here is the result of doing this: https://www.astrobin.com/b8xmsz/
What is the purpose of unchecking the same camera and optics in registration? Neither of those have changed in doing the integrations.
integrated files will already be calibrated, so you can simply integrated them together. You need star analysis, registration, normalisation for that. I would integrate with weights based on SNR if the stacked data sets differ widely in their integration times (or moon phase).Â
If your original stacks already had "same camera and optics" checked in registration make sure to uncheck that. Other than than I stack integrated stacks often, especially in mosaics. Just load the various integrations as lights and have at it.
Here is the result of doing this: https://www.astrobin.com/b8xmsz/
The files have already had any correction needed done to them. Also uncheck dynamic distortion correction unless doing a mosaic.
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