Has anyone tried using DisplayFusion and PhraseExpress concurrently?

Sometimes when typing, my active window will lose focus. When this occurs, there is a title bar visible that belongs to PhraseExpress. If I open the main PE window, then this "minimized" window does away. This behavior only occurs AFAICS when DisplayFusion is running.

I previously tried adjusting the compatibility settings in DF for this application, but it didn't help. I just tried disabling window snapping for this application, but it is too soon to tell if this had any effect.

Anyone seen this or know how to correct it?