Failure to open container and talk dialogue
Estimated 1 out of 20 times, when you talk to a person or open a container you fail to open the corresponding dialogue. Instead you have to do it a second time for it to open. It seems independent of which button is bound to "Activate" as it happens with both the mouse and keyboard.
I have no way to reproduce this other than speaking and opening different things/people until it happens.
(RM-728 from redmine: created on 2013-04-20 by Lars Söderberg, , closed on 2013-04-22 by scrawl .)