Google translation: "LR Classic Message: File linked to another photo in the catalogue. Hi@ all. I have the following problem and cannot solve or understand it. Images are displayed twice, once as jpg and once as nef. the nef file is marked with the small gray box on the top right as the original file was not found. When I go to search and find the file, I get a message that the file is already linked to another catalog and cannot be linked. LR then also shows me the catalogue, i.e. the directory where I also saved the file. How can I solve the problem that the nef files are displayed again or I can link them to use again? Don't use any other library than the one shown"
First screenshot: ""D3D_1401.NEF" can be edited using Smart Preview, but the original file was not found. Do you want to search for it? Previous Location: /Volumes/G-DRIVE USB/ LR New 2019/2019 D3X 2019 2019/11/27/D3D_1401.NEF"
Second screenshot: "The file "D3D_1305.NEF" is linked to another photo in the catalog. Each file can only be associated with one photo. Show in library"