Back with another Question on 46P processing:
I took another data set on this comet which proved to be much cleaner than my last attempt. Luminance, Red, and Blue are all behaving - the standard method is to align the subs, Comet align, Comet Subtract, and then combine the clean star field. However, Green seems unable to do this cleanly. After subtraction, checking all the subtracted images in the Blink Process shows them all to be horribly clipped except for where the comet is located, as if the subtraction process removed everything but the comet (see image). This persists even when checking various combinations of Normalize and/or Linear Fit in Comet Alignment.
I've even tried using PixelMath to subtract the comet image from an individual sub and it turns out fine! Yet Comet Alignment's subtraction for some reason seems to be heavily subtracting the green channel images only (as stated, Red and Blue completed these processes without incident)
Do any obvious solutions come to mind? The Green subs, calibrated images, and aligned images all look fine, the issue only comes up when attempting to subtract the comet
Edit: I also found that inverting the comet (white background, dark comet) and then running the subtraction will show the opposite - the are around the comet will be clipped black but with a normal starfield in the upper-left part of the image
