Hello.
I have stacked and processed a few images with SIRIL and had no problem. Last night I stacked a new set of images, and the resulting FITS file is blowing out horribly when I apply autostretch.
The FITS looks ok when I open it, but when I change LINEAR to AUTOSTRETCH, this happens:
FITS file on left, mess on the right, obviously
https://flic.kr/p/2kxBAPD
This is also happening when I open FITS files I stacked previously, without issue. I don't know why it is suddenly doing this.
Any ideas please?!?