Home Sync & Menu Bar Issue

Hey 🙂

One of our clients on Yosemite is failing to sync constantly.

Since sync hasn't worked on logout for quite a while we changed our profile settings to sync in the background every 5 hours.

However, when I try to access the menu bar item to kick on a sync manually it just beachballs on this particular client.

On inspection of the homesync process in Activity Monitor I can see that the process is not responding but even after quitting it, the problem just persiusts and the menu bar item is inaccessible.

On the odd occasion that the menu bar actually brings up the menu, "Sync Home Now" does nothing.

I've not come across this on any of our other clients so just wondering if there's anything obvious to try?