Address empty in checkout after updating to 2.4.6?

I updated from 2.4.4 to 2.4.6, everything seems good, except for the checkout. It seems that the customer addresses are not loaded correctly.

https://i.imgur.com/rZKZLs1.png

When I go on to the next step, the addresses are also empty: https://i.imgur.com/bBDNVSd.png

I checked the logs, nothin suspicious in there … store is running on PHP 8.1 and compiles, upgrades and deploys without problems.

Any ideas?

Thanks!