So, if I understand your post, you CAN process an image file (DNG) in PureRaw that has been previously processed in LR (which processes DNG files in ACR) without getting the “can’t process/or corrupted” message? I don’t use LR anymore, but have numerous DNG files that have been processed in LR, and none of these can be processed in PureRaw, which is quite a disappointment. PureRaw’s claim to be able to process old DNG files to rejuvenate them doesn’t work if they have been previously processed in ACR (or perhaps any other image-editing app, even the Adobe DNG Converter). Note that I have made the fatal error of NOT saving the original, unadulterated, DNG file, but only saved the DNG that was converted in ACR. Once a file has been converted by ACR, PureRaw won’t convert it. That’s my experience. Always save the untouched, original raw file. Convert a copy. I learned my lesson.