Used the auto detection, but had to tune the “Edge Shift” to -1 and corrected the mask with some “Keep” and “Cut”. Still not happy with the result.
Also noticed that the background colors are not saving with the image at export to for example PNG.
When using the “Keep Brush” it disappears for a long time despite the fact that I have 16 gig internal memory in my Windows 10 laptop.
For Me Normal Tiff Normal JPEG looses information.The Large file is to test accuracy.
There are normal pictures above did you try pictures above the bottom one?