Apple wallet push notifications have stopped working.

I've been using Apple's push service for pass notifications for years and everything was working fine. Lately, with no code changes, the push service has stopped working. Pull to refresh does get the updates and highlights changes properly, so the pass signing is working properly, it's just the push notices don't seem to be getting to the device. I am getting log messages back from the APNS as well as a 67 response (indicating the bites received) so I don't think there are any authentication issues.

I don't know if this may be related to this post: Apple Push Notification service server certificate update - Latest News - Apple Developer

I have checked that the server has the new certificate using this post: Push notification of server certif… | Apple Developer Forums

No push updates work however the Lock Screen location messages appear and notifications DO appear on the Lock Screen correctly *after* pulling to refresh on the back of the pass. Anyone have any ideas on how to fix or even start troubleshooting why the pushes aren't being delivered to the phone?

Note: I also disabled rate limiting in the developer settings on my device to make sure that isn't the issue.