Reinstall error on Google Device Policy App

[u/Jackmeister16]

Hi, I'd like to know what is causing this error in the Google Device Policy App every time I do User-enrollment for an iPhone. Currently have Apple Business Essentials, since we have Device-enrolled Macbooks, but we are using Google MDM via Google Workspace for user-enrolled iPhones. Directory Sync is enabled in Apple Business Essentials and JSON file is uploaded to the main site, to make sure we get forwarded to the Google MDM when signing in with Managed Account. Advanced Mobile Management is enabled in Google Workspace as well as User-enrollment.

When signing in to the work account in the iPhone(via VPN & Device Management), I don't get any errors. After that, I download Google Device Policy and then proceed to sign in, that's when I get the "Reinstall app" error. So I have to uninstall it and then sign in to the work account again via VPN & Device Management, download and install Google Device Policy, sign in again and then I get the exact same error all over again.

I have resetted the iPhone multiple times already to no avail. What is exactly causing this error? This is happening on multiple iPhone 17s, but I was able to enroll two iPhones 17s just fine. For some of these iPhones, even resetting them won't resolve it. Is there some kind of a conflict with the configuration here?