Ok, so I have spoken with the developers again (Luc), and he confirmed that there should be no damage to the files during stacking other than calibtration process.
But, I ran the DSS program again, and it did spit out grey output again. But this time I saved as TIFF BUT took bojan's advice and chose the option "embed adjustments in the saved image but do not apply them", and EXCELLENT. IT WORKED!
Opened it in PS and all good! Colours there!
So it seemed that calbriation does change some things in the process but theyar enot permanent and not needed to be applied on saving.
I have attached the output from DSS (grey) and then teh saved DSS image in PhotoShop
I hope this helps
It has helped me! Thanks Bojan well done
