I can’t make copy, or at least a duplicate by exporting and importing an image, unless I change it to jpeg! Lr always notice that I’m trying to import the same image, I also tried to change name But nothing happened.
Unlike Lightroom Classic which uses a combination of Filename/Date/Size to determine duplicates, Lightroom Ecosystem clients use an internal hash to identify files. If you export it as original, it will be flagged as a duplicate. Lightroom Ecosystem does not currently allow for 'copies'. You might consider adding your voice to the feature request here: https://feedback.photoshop.com/photoshop_family/topics/lightroom_mobile_virtual_copy