Device Provisioning Service can't validate certificates

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I have several devices that were successfully reporting to an instance of Azure IoT Hub. They are provisioned using X.509 certificate attestation in the Device Provisioning Service (DPS).

A few days ago, the IoT Hub stopped receiving messages from the devices, and at the same time, the number of attestation attempts in the DPS scaled from being 0 for almost all of the time, to being constantly non-zero:

Captura de pantalla de 2024-06-17 12-26-57

I have also observed that the documentation on X.509 certificate attestation was updated recently. I want to ask: has anything changed in the DPS attestation chain that could have impacted my architecture?

Thank you very much in advance.

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