Here's a video of a recent occurrence: https://drive.google.com/file/d/1PRqJ35ieXVAnZo6Yq8AGv6KCyPHWZiIa/view?usp=sharing
The plugin worked fine for a while. Then I switched to use other apps, leaving Cakewalk in the background. The desktop migh've been locked for a while. When I went back to try the Magic7 plugin, no popups work in the plugin UI. Controls on the main UI work ok, but no pupus are shown. The Waves Curves Equator still worked just fine. Again, deleting the plugin and undoing the delete restores the plugin functionality.
I'm still on Win 10, everything up-to-date, including the display driver.