Google API 400 error

Hey folks, my google cloud storage and transcription process fails to authenticate after a few days. I tried the steps mentioned here for my free gmail account: Google Authentication issue: Status Code Error 400

However, even after going live and requesting verification, I still get this error. Do we have any other thoughts? My verification was denied due to not having more than 100 users btw. Do I need to lie and get it verified?

Here is the exact error:
Failed to verify connection ‘New’. Status Code Error: 400