This is a real pain! I'm getting the same behavior.
Intermittently, the paste functionality (ctrl+V or Edit -> Paste) does not work. My Tools->Preferences->Key Configuration is set to Crtl+V for the Edit / Paste Item.....
I know there is lots of other functionality but for me I really only use the SQL Window which is where this error is happening (maybe it happens elsewhere).
I'm sure there must be a pattern to when it doesn't work as sometimes it works and sometimes not... I think it might be related to if I've executed the SQL previously or not (maybe!).
I'm using version 11.0.6.1776
Last edited by sads; 06/30/16 01:07 PM.