When I try to share somewhat (contact, maps, mail...) with the share button the app is blocking like wait some command..
I have this problem with safari when I try to share a link, with contact when I try to share a contact via mail, with any kind of app when I try to share data.
If I reboot the mac, nothing change.
MacBook Pro with Retina display, OS X Yosemite (10.10.2)