microG suddenly failes basic Play integrity check

Hello,

I’ve been using eOS on the Google Pixel 4a (sunfish) on 3.5-a15-20260211-community for a few months now without any issue. A recent Login with Duo Mobile failed the Play integrity check. It was working fine two days ago. During this time, no update was made. Does anyone have experience with this change in behavior of microG? Any obvious mistakes I made or recommended fixes?

Thank you in advance!

Also no app updates?