Upgraded to 2.1.0. Opened existing file for galvo laser to make brass coins. Deleted some old images within the file, imported (click-drag) a new 16-bit depth map. Manipulated it to size & position for side 1. Imported a 2nd 16-bit grayscale image and manipulated that to size and layout for side 2. Decided to change side 1 so I deleted edited image 1 and then click-drag unedited image 1 again from Windows explorer. Rather than getting a new unaltered Image 1, it gave me a 2nd copy of unaltered image 2. I deleted this wrong image (Image 2). Tried importing again. Same result. Closed the file and created a new file and tried to click-drag image 1, but again it gave me image 2 even though this new file had no image 2 in it. Shut down lightburn 2.1. Restarted Lightburn 2.1.0 with new file. I could click-drag image 1 into a blank document. When I attempted to click/drag image 2 into the document, it gave me a 2nd copy of image 1.
Uninstalled 2.1 and went back to install 2.0.05 and that version works as expected.