Carefully select Archicad Solo Project so the interface will gray out the non-Solo Project files. It also grays out the Solo Project files.
Sometimes, you can choose another Enable option and some items will be black. Sometimes, you can scroll in the window and that will turn some items black. Sometimes not.
If you squint and find your file despite the lack of visual feedback, the first click on the file name does nothing, every time. Silly user, you must have Enabled the wrong option! No, the second click will highlight the item, every time.
Maybe All Files or All Archicad Projects would work? LOL, no. One of the simplest interactions in the whole workflow, and somehow GS broke it. I imagine Windows 3.1 worked better.
Please fix it, and while you're at it, restore the ability to Move to Trash in these dialogs, and allow pasting (what on earth is happening) in the filename field.
Rill Architects • macOS • OnLand.info