After one of the recent KitKat updates, my contact share no longer works. When I try and share one using gmail or the built in email app, instead of getting an attachment that says something like "john smith.vcf", I get "2345i76:350" or some other internal ID. Then the email doesn't send because of a bad attachment. I've tried this on my Nexus 7 with the same version of KitKat and it works as it always did. Any thoughts on how I can fix this? Thanks.