Speed Editor and rendering out

I found a strange behavior, when touching a key on the Speed Editor during rendering out, the process stops immediately. This happens always not sporadic.
I waited a long time but nothings happens.
Restarting is the only solution or not tapping on the keyboard of course.
Dirk PEL
I waited a long time but nothings happens.
Restarting is the only solution or not tapping on the keyboard of course.
Dirk PEL