Plex Server crashing when trying to sync

I’ve been having nothing but issues with trying to sync since the new Android version 5. It either gets stuck on “Waiting to download”, or it gets to 50% and gets stuck there.

After hours of trying to get even just one file to sync, I’ve realized the server app is crashing on my Win 10 machine. It’s bombing out whenever a sync is requested, either from the browser on the server, or from the Android app on my mobile.

Has anyone else had this issue. Plex server version is 1.1.4.2757. I’m getting really frustrated with this as all I want to be able to do is sync music to my phone so I can finally ditch Google Music.

OK - seems to be sorted after running a “Repair” on the PMS installation.