I worked with the same version for some time, but without any reason I can not copy and paste. It is not the Shortcut, also copy via the contextmenu does not work (when I click "copy", the "paste" entry stays shadowed out). I am not using a remote desktop. It doesn't matter if I am in C, C++, etc. Any suggestions?
Microsoft Visual Studio Professional 2013 Version 12.0.21005.1 REL Microsoft .NET Framework Version 4.5.51209
EDIT: Copy&Paste works fine in other editors.
EDIT2: It randomly started to work again...