APNS response shows that APNS push was uploaded and fine, but no push has been pushed to device

Hi, guys

We found that device cannot receive push from 2021-06-20. First we thought possible reason was APNS certificate was expired, but actually its expiration was 2021-06-25. Anyway, we have built a new APNS certificate, however, device still didn't receive any push from server.
We used curl to test the APNS certificates and response shows APNS push was completely uploaded and fine but device didn't receive push. We also tested expired/revoked APNS certificates and responses showed correct action.
It seems upload are OK but device cannot receive push, any help is appreciated.

More information:

Test device:

iPhone SE, iOS 13.5.1

@Lucifinil.Long
I'm facing the same issue. I received a response like this: 200 OK with an Apns-Id value of D1D813DE-9D19-7046-3EB7-6B8640CEBF31, but the devices didn't receive the push notification.

APNS response shows that APNS push was uploaded and fine, but no push has been pushed to device
 
 
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