Copy and paste stops working

[MTF Showtechnic]

Yesterday we were working on a timeline.
Goto timeline - goto Editor etc.
Suddenly the Software lost the complete control of keyboard in timeline.
Not only copy and paste ("ctrl" + "c"/"ctrl" + "v") also space button to start/stop the timeline didn't work.
I didn't reboot the software because I've continued working.
Stoped timeline with the play button - revised scenes, add new scenes etc.
And to my surprise like keyboard control disappeared it's back to work.
?????
During working keyboard control is lost again and also back to work.
It looks like a big lottery - May I win and keyboard works or am I gonna loose?
Real fine if this happens during a show!
So as other User's wrote - they have the same problems as I described here:
viewtopic.php?f=77&t=3670
It seems to be a bigger problem with keyboard control.
greetings

[support]

Noted.
As soon as we can reproduce this problem, we will work on it.

[MTF Showtechnic]

Here something more:
At this afternoon we use our ready made timeline.
Within the lightshow are 3 button's - two defined as On/Off and one as Flash.
Although the Timeline is paused the Flash Button didn't work.
I go back to the button window and now the Flash works.
Back to timeline - Flash still working.
Strange behaviour.