Just posting my experience to see if anyone has similar experience or insight. I had a late stage model (Phaze A) and one particularly badly lit scene's images were being A>B swapped with overfitting, instead of (faded) shadow I got magenta hues. tried a bunch of things to no avail but got lucky and when I tried increasing the Color Ab value (in the Trainer settings) from 8 to 16, it almost immediately fixed it and it hasn't come back after a few dozen hours so seems stable.
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