I may have found a bug in Display Fusion within Windows10.

After upgrading to Windows 1803 (Build 17134.165) about three weeks ago, every 25 seconds to a minute the screen refreshes and the taskbar in both the first and second monitor disappear then reappear all within a few seconds, which in tern causes the screen saver as well as specifically the top most window which is opened in the second monitor to close, but the window does not always close.

For example; when watching a video, anytime up to typically ten minutes of watching the video, the window considering it's the top most window which is open in the second monitor closes automatically and this also causes the screen to refresh, the taskbar in both monitors to disappear then reappear all within a few seconds.

Sometimes when I re-open the same top most window, and resume playing my video it will be all within a few seconds the screen will refresh and the window will close, other times it can take up to ten minutes; and no, it does not only occur when a video is playing; it depends on what is the top most window.

I have done a malwarebytes scan and the results are positive, as well as a super anti-spyware virus scan and the results of that were positive, as in no virus / malware etc. I've updated graphics drivers, as well as done regular as in, daily updates for Windows but Microsoft doesn't release updates everyday, this all has been occurring for the past few weeks after upgrading to Windows 1803.

It has been an extremely frustrating situation as I've tried to ask for help and my only conclusion is Display Fusion. If it's not display fusion which I can't exactly prove it is; I just find it odd the task bar is refreshing in both monitors ?

Unfortunately after completely shutting down display fusion, the problem persists.
I can't figure out what the problem is, strange, very strange.