shift + Clic visibility = BUG pianoteq ?


1time out of 10 (say) if i shift+clic on visibility to display only the selected track i get a window with bug report crash dump. then i realise that if i open a pianoteq instance it is super laggy and sound from nuendo is chopped until i close the pianoteq window (not sure it’s all time i’ll have to check)
i don’t know what to describe more then that.
i clic on a folder in visibility, i use video track and loooots of midi vsti + audio in this session on win 7 x64 nuendo7.0.30

am i the only one having this ?