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.
Dear all,
I have imaged recently Deer Lick Group(NGC 7331) and for Luminance I have taken about 10 h of 5 min subs(122 in total) and also 3.5 h of 30 min subs(7 subs). I have tried stacking the together, I am getting some strange artefacts in the NGC 7331's core. Any idea what settings I need to change to correct the final image? From the standard integration panel I have only changed the droplet size to 0.5 and the mode is interpolation at scale 2.0 with automatic setting. I have attached snips with 5/30 and all subs stacked stretched in PI-intensity transformation only
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Try zooming in with using one of the automatic stretches in APP, and also check to see if PI is displaying it in a lower bit depth than it is. That looks more like an artifact from having a lower bit depth (32 bit vs 8 bit zoomed in tight before processing is finished is a good example). Also, try finishing out your processing and saving a jpeg or a 16 bit tif and see what happens with using something like windows photo viewer on them.
