Finder crashes with "right mouse click"

Hello guys, girls,

Every time (or most of the time) when I right click in Finder (on a file or just in the white space), Finder stops working. I have to switch (alt - tab) to another app and then force quit/restart Finder.

It is happening since the 10.10.1 update I think, but I'm not sure.

Tried to restore disk premissions and empty the cache, doesn't help.
Any suggestions?

 

I found what it was.
The app "Box Sync" was running all the time (syncing).
Deleted it, reinstalled it and now right click is working again.