Created attachment 109186 [details] left:background right:inverted I selected the background of a photo with the continous selection tool and refined the selection with Shift-Clicks. Then I inverted the selection. Doing so created artifacts. Calling Invert Selection again resulted in the original selection, but the inverted one was broken. I attached cropped screenshots of a region: left is with background selected, right is the inversion
What is probably going on here is that Krita's selection system can handle semi-transparent selections, but they are not visible in the standard display mode: Turn off anti-aliasing: https://docs.krita.org/Contiguous_Selection_Tool Or turn on the alternate display mode: https://docs.krita.org/Selections#Display_Modes If this doesn't solve your problem, reopen the bug.