I am trying to implement a debug mode for previewing creatives in my Android application, following the steps describe
here. I am running into a problem where once I get the debug menu to display (no problem), if I click on "Creative Preview", I would get an AlertDialog with Title: "Error", message: "In-app preview failed to load because of a system error. Please try again later." The first time I click "Troubleshoot", it would make me sign into my GAM account to link, after that it just says it is already linked. On the GAM side, I can see the linked device and try to force an ad, but when I click on "Creative Preview" it will always show the same error. Is anyone else running into the same behavior, or have I setup incorrectly (I have tested a few times). I greatly appreciate any insight on this.