Yes, the version numbers match. I have tried both pushing the same file manually to my phone, and I tried downloading directly from google play. Both versions have the same result. And yes, it is one of the approved beta accounts as well.
I found this step-by-step tutorial, and went through it. Integrate Google Play Services with Blueprint - Blueprint - Epic Developer Community Forums This tutorial claims to work, but it did not work for me. Problem is, I don’t know if it is something in Unreal causing the issue or if it is something in Google play itself. I feel like I have gone through both with a fine-toothed comb, yet something is still not connecting.