Can't edit object properties with context menu + right click

For some reason recently I can’t edit the properties of objects like “edit bones”, “drive” etc. by c+right click. If I try to right click on an object, no menu shows up, it doesn’t give any indication that I’m hovering over a prop. Anyone know how to fix this?

You must in sandbox or sandbox derived gamemode for that, and your admin mod must not block it.

This is in singleplayer

IM HAVING SAME ISSUES

[editline]18th November 2014[/editline]

well not me a friend lol