Problem with my QHY 533 color sensor?

I really don't see anything unusual there. It really looks like the usual stacking artifacts that you get when there is some drift between the frames. If you use NINA you can minimize that by invoking the "re-center on drift command" found in the advanced sequencer. I use that command to limit total drift to no more than 0.25 arc/min. but you can set any value that you like.

Does a single frame show it once it has been calibrated?

Again, I see nothing unusual. It's a very dusty area so there's a lot of variation. You are going to see all sorts of ugly things when you stretch an image that much. How does your final image look?

Hassaan Zaheer:

Tony Gondola:
Again, I see nothing unusual. It's a very dusty area so there's a lot of variation. You are going to see all sorts of ugly things when you stretch an image that much. How does your final image look?

after severe editing i can make it work.
ill post another image that highlights the problem much better.
Here you can see a pattern that shows around the border of the image.

I had something weird like this happen when I started using my sharpstar Newtonian. Never occurred when using the same sensor/filter along with the RASA. After having done a channel extraction to troubleshoot further, it seemed to only impact the B channel. I've switched filters which yielded better results (Antlia L -> Optolong L), but didn't completely eliminate the problem. I also tried using 100 gain instead of 0 gain, which also didn't completely eliminate the problem but it did a better job at burying it. It doesn't happen with my narrowband filters, so maybe it's a stray light/reflection issue. Or an issue with the flat light source. Haven't been able to figure it out

Hassaan Zaheer:
Hi,
I am using a QHY 533 color cooled camera,
i am seeing some weird banding around the edges.
Can some one identify the source of the issue.
I am using flats, darks and bias frames to calibrate the data.
The flats are working because all the dust motes present during imaging are removed.
You can see the banding on the bottom right and top left seems to be the worst. though the original banding shifts after meridian flip .

was the moon about, beaming it's light polluting goodness in?
This looks surprisingly similar to what I got on M42 in dnb last night ;)

TiffsAndAstro:

Hassaan Zaheer:
Hi,
I am using a QHY 533 color cooled camera,
i am seeing some weird banding around the edges.
Can some one identify the source of the issue.
I am using flats, darks and bias frames to calibrate the data.
The flats are working because all the dust motes present during imaging are removed.
You can see the banding on the bottom right and top left seems to be the worst. though the original banding shifts after meridian flip .

was the moon about, beaming it's light polluting goodness in?
This looks surprisingly similar to what I got on M42 in dnb last night ;)

I have taken shots during full moon and no moon and the result is the same. 
it disappears when i use a duo narrowband filter.

What telescope and other accessories are you using?