Videos in IMA won't stay on in fullscreen view

[BanjoTom]

When I view a video (usually .mp4) in IMA, it runs just fine unless I click on the fullscreen icon.  Then it flashes to fullscreen very briefly and quickly reverts to the icon size view. This happens on both my desktop (WIn 11) and my old laptop (Win 10), and occurs whether my Malwarebytes VPN is on or off. 
How can I view a video in IMA and get it to play fullscreen?

I've attached a short zipped screen-captured video that shows this problem...

[Mario]

You have already opened a bug report for this: https://www.photools.com/community/index.php?topic=15117

[BanjoTom]

Sorry!  I won't mention this again...

[Mario]

No worries. It's on my list. The update cycles for IMatch Anywhere are slower than IMatch.