Do you know that you can change the panel version directly in the rack view with the Panel Selector function? You don't have to go to the module detail view.
I tried to explain it here: https://www.modulargrid.net/e/forum/posts/index/1749

If I open a rack, get info on a module, and click an alternate panel, it does add that panel to one of my racks, but it's usually not the one the module was actually in.

You will be redirected to the last rack you have changed. That is your active rack.
Current workaround: just wiggle a module slightly in a rack to make that rack active. I know that is a bit wonky ...

Beep, Bopp, Bleep: info@modulargrid.net