Lightroom CC 2015.1.1 stalls on import with Olympus .MOV files, even if the files are very small (3MB). It will start but at some stage progress bar will stop updating and it will continue to pretend to import the movie file for ever.
In addition, when scanning for files in import the import page will take a very long time - a directory with a single 3MB .MOV file takes about 3 min to return results.
I used to import .MOV files with no problems but have since upgraded Lightroom, camera firmware and Windows (from 8.1 to Windows 10). I do not know which caused the problem.
Using Windows 10 and Camera Raw up to date. Using current camera firmware from Olympus.
Happy to send a sample .MOV file for someone to test if that will help.