Hello,
Sorry to hear you are having issues. I retest my messenger, reinstall with the latest version this time. And yes, its does not group like before. My guess is the webbase messenger has change something in its code and now using none standard titlebar which seem similar to its Microsoft Store version. Which also have issue with Groupy.
Anyway, I have forward your problem/question to Stardock Support Team for their assistance. Please keep an eye on this thread for any updates. We appreciate your feedback and patience.
Thanks
Basj,
Stardock Community Assistant