* open two projects A and B
* export multiple items from A (items should take some time)
progress is displayed per item of exporting from project A
during multiple export of project A do:
* make project B active and press play audio
now wait until an export item from project A is done
now the 'progress window' is "bound" to project B and you can not
press "stop (audio)" since the progress window is forcing focus to
after the exporting is all complete, switching to project A will
display a "exporting progress" dialog that is "stuck" at the moment
the progress was bound to project B.
the progress dialog shows a cancel button and does not progress any
further (since the export has already finished).
pressing cancel has no effect (other than disabling the cancel button
on the progress window).
I don't know if I describe things correctly, but does this sound
familiar / ring a bell with someone?