Not sure if you found your solution yet , but I just wanted to add that ALL 585 sensors suffer from Diagonal blue banding, I own a player one Uranus C PRO , my friend the standard Uranus C and both suffer from it. Apparently it is inherent with these sensors. It mainly affects the blue channel. It only affects Light frames and Flats (anything exposed to light) so unfortunately so far there is no solution to remove these flaws from images other than Intense processing! I have been in contact with player one who advised it was inherent with these sensors and advised taking "Sky flats" to correct the problem , I have yet to try the recommended solution as weather hasn't permitted but I really cannot see this as a solution and how it would work.