Thank you for your quick response Divraj! I've entered a FrameMaker support case to see if they can help me fix it. It's a very handy option! And to answer your first question, I no longer have two versions of FrameMaker installed, but I did when this issue first started happening. I now only have 2...

The "Open in FrameMaker" option in our AEM Guides instance is showing up fine -- and it used to work for me. But lately (I think since upgrading versions of Guides and FrameMaker (to 2020), when I click "OPen in FrameMaker" to open either a .dita file or .ditamap file in FrameMaker, the screen just ...