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.
If I am working with DSLR images should I debayer them and if so how do I do that in APP? Is this controlled by settings on 'Raw/Fits' tab?
For processign DSLR images do I select 'force Bayer/X-Trans CFA'?
Does APP apply drizzling on images?
Why do I need to select working directory every time I launch APP?
@stmifx Debayering is done automatically by APP. It is indeed controlled by the setting in tab 0 and when full spectrum images are used then the default setting in that tab works best. If double/triple small band filters are used then Ha-OIII color gives better results.
'force Bayer/X-Trans CFA' should only be selected if APP has troubles detecting the Bayer pattern. With DSLR images this generally is not the case so leave it deselected.
Drizzling can be done with the Drizzle Integration and Integrate settings in tab 6. Hover your mouse over the different options to get a description of what they do.
The working directory needs to be set so APP knows where your data are. Mabula is working on a way to save user preferences in APP and this is scheduled for a future version of APP.