APM) NA error "Configuration download failed"

Hello everyone

My client is currently using APM version 7253; prior to the OS upgrade, they were using version 7247.

The setup involves an inline configuration with an SSL VA positioned upstream of the APM.

Communication between the client and the SSL VA uses TLS 1.3, while communication between the SSL VA and the APM uses TLS 1.2.

VPN connections worked normally when using version 7247, but an "NA error" appears after upgrading to version 7253.

Has there been any change in TLS-related behavior between version 7247 and 7253?

Alternatively, has anyone else encountered a similar issue?