I upgraded lightroom 4 to lightroom 6 and find the collections not matching as I am missing collections in lightroom 6 but present in lightroom 4 which is where I created them. I also have a few of the latest created folders missing but the photos present but scattered when I select all folders to obtain all photos. I have installed the latest lightroom 6 updates where my question is: " Do I uninstall Lightroom 6 followed by reinstalling lightroom 6 to recover the collections and place the photos in the correct folders as they are in Lightroom 4? Since I updated online to my windows 7 desktop, how do I find my license if needed? Thanks for your response.
Did you convert the LR4 catalog or re-import?