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.
It seems that the data within the FITS headers is cleared on the combined images. So the data such as Camera, Observer Location, Temperature, Aperture, Focal Length, Pixel size, Gain, Site information, focus position, image type and image RA/Dec are all cleared. This is valuable information that should never be cleared. This is a serious issue.
Is this as intended? If not, it needs to be addressed as it makes it impossible to use with other applications that need this information. PI, for example, retains this information in the integrated images.
Also, the data gets changed from the actual data values (0-65535) to a normalized value (0.0-1.0) once the data is averaged and combined. While this is similar to what is done in PI, it does cause some issues when displaying the images in several different applications such as TSX (the image is just shown as pure white).
That is correct, we have this on our todo-list to change and add more information.