I figured out my problem, but it’s different than yours.
Mine does have to do with how I set up my basic template. I left all inserts blank on the fx channels. On the Audio channels the sends are all routed correctly to the fx channels. So upon loading my basic template, all I have to do is choose the insert for the fx track such as a reverb, then on the audio channel, activate the send and since it’s already routed it’s all is good to go…until I read this post for a shortcut to open that GUI.
Double click+alt on the audio send track resulted in the channel settings box opening even though I had a reverb insert on that fx channel!
So I delete the reverb insert on the fx channel, then open the reverb again, now double click+alt on the activated audio send and it opens the reverb GUI.
If I were to create a new audio track, create a new fx track, insert a reverb on the fx track, route the audio send to the fx track, double click+alt, I get the correct behavior of the reverb GUI opening.
But with creating and then saving a template with correct audio send routing, and where the fx inserts are all blank, then opening the template, inserting the reverb on an fx track, double click+ alt is going to show the channel settings box…until you delete the reverb then open it again.