The problem seems to have started with Ardour 7.2.0. Sometimes Ardour UI doesn’t react to mouse clicks. I am under the impression that sometimes it registers clicks in a wrong window. For example, I’d open the About dialog and click “Close”, but the dialog wouldn’t close. Instead, one of the existing regions would get highlighted in red.
I’ve always had an issue with (the Linux version) where if you right click in a mixer channel to add a plugin, the context menu appears and you can select and add a plugin from the options presented, but if you then right click again to add another plug-in, nothing happens and you have to right click a third time to get the menu back again. Not sure if that’s related (or even if its intentional behaviour)
I’m wondering, is there a way to download an older version of Ardour? The download page only contains the current version. Unfortunately I can’t work with the current version because of the problem I described.