LR CC 2015 on an up-to-date, recent model iMac. Each time I start LR the preferences are lost and it opens as if it is newly installed. From Identity Plate to info display in grid view to side panels, all of my settings from the previous session are lost.
I tried replacing some preferences with those from LR on another iMac, but it didn't help. Had to re-identify the LRCAT, but there were no other changes.
Tips on fixing this problem? Thanks!
Please uninstall the Lightroom, restart the machine and reinstall it from creative cloud app, also you can create another user account and test the Lightroom there.