Thanks Malcolm and Rowland,
Here is the Dropbox link (I hope it works..)
https://www.dropbox.com/sh/zpjembcg5...55o5c0Cja?dl=0
Cheers
Bo
PS: The first 30 images were done after the meridian flip and were the source of the troubles (I managed to stack the remaining 74 frames and got a good result).
I will post a proceed image later!