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.
Finally stacked the data I acquired over two night on the California Nebula, with my new (well, second-hand) ASI183MM-Pro. I shot a load of short subs without guiding using an Astronomik 12 nm H-alpha filter, and Canon 200mm F/2.8 L lens. Unfortunately, APT assumed the new camera was a colour camera with RGGB bayer pattern. Using "no interpolation" debayer method as suggested in APP got reasonable results, but also produced some odd artefacts. I therefore retook the darks with APT set to interpreting the camera as monochrome, and edited the FITS headers of the master flat and lights to remove any mention of the bayer pattern, and ensuring everything was treated as monochrome, and lo and behold, it worked, Now I need to add some colour to this
