IF you look at the shot you can see two Filter wheels one Big One small and the sitting filters. From what I have read this occurs where the filter wheel travels both ways while it is taking the shots.



I did find an update that stops the filter wheel traveling both directions now only travels one way.

So now this has been set up I am trying to take as many shots RGB as I can to check not a shot to post but one I can look at. I hope it works as some of space has to be shot LRGB not Narrow Band.

If is no solved a lot of shots will no be taken in pure colour. If it does not go away Narrow Band doses not seem to show the Defect on LRGB.