Your type of situation has been written about before and remains the same up to and including the current version 13.
What you describe is what it is. There is no way to change that behavior. The Premiere Elements playback in progress stops when you
switch to another application. No user turn off switch to prevent this from happening.
Thank you for the reply but there was no written message. Was the reply in the non smiley icon?
If so, I understand. But, if you intended to send a written message, somehow it did not get posted. In
that case, as your schedule permits, please try again.