title: "Authorization is required to perform that Action" Error on a copy of existing code that works
body: <p>I'm using Apps Script and the OAuth2 for Apps Script Library to connect to a couple Google advertising platforms. Basically, each account team has a Google sheet that automatically gets their campaign data every morning. I've got a couple of these sheets up and running already, but when I try to set up this most recent sheet I'm getting the "Authorization is required to perform that Action" at the very end of the OAuth process. I'm able to start the OAuth dialogue, select an account to authorize, but then I run into the error. </p>
  
  <p>I authorized the script in the script editor before I ran it, and all of my OAuth credentials are correct. I've even deleted and re-created the scripts. The other sheets running the same scripts are still working fine.</p>
  
  <p>What's going on here? I'd appreciate any ideas, I've set up a couple test sheets to see if I can puzzle it out, and now they're all returning the same error.</p>
  
  <p>Update: Everything works properly when run from a different account, so it's looking like it's a problem with my account, specifically. Is there any way to manually check that an Apps Script project has been authorized correctly on a given account, aside from the prompt when the script is first created? </p>