certificate expired

[chenzl-123]

Trace : 4, 20250115 150242.290 SSL cipher available: 53:RSA-PSK-AES128-CBC-SHA256
Trace : 4, 20250115 150242.290 SSL cipher available: 54:DHE-PSK-AES128-CBC-SHA256
Trace : 4, 20250115 150242.290 SSL cipher available: 55:RSA-PSK-AES128-CBC-SHA
Trace : 4, 20250115 150242.290 SSL cipher available: 56:DHE-PSK-AES128-CBC-SHA
Trace : 4, 20250115 150242.290 SSL cipher available: 57:AES128-SHA
Trace : 4, 20250115 150242.290 SSL cipher available: 58:PSK-AES128-CBC-SHA256
Trace : 4, 20250115 150242.290 SSL cipher available: 59:PSK-AES128-CBC-SHA
Trace : 4, 20250115 150242.290 SSL handshake started write:unknown:unknown
Trace : 4, 20250115 150242.290 SSL state connect:before SSL initialization:(NONE)
Trace : 4, 20250115 150242.290 SSL state connect:SSLv3/TLS write client hello:(NONE)
Trace : 4, 20250115 150242.290 SSL connect:SSLv3/TLS write client hello
Trace : 4, 20250115 150242.290 SSL state connect:SSLv3/TLS write client hello:(NONE)
Trace : 4, 20250115 150242.290 SSL state connect:SSLv3/TLS read server hello:TLS_AES_256_GCM_SHA384
Trace : 4, 20250115 150242.290 SSL state connect:TLSv1.3 read encrypted extensions:TLS_AES_256_GCM_SHA384
Trace : 4, 20250115 150242.290 SSL state connect:SSLv3/TLS read server certificate request:TLS_AES_256_GCM_SHA384
Trace : 4, 20250115 150242.290 SSL state connect:SSLv3/TLS read server certificate:TLS_AES_256_GCM_SHA384
Trace : 4, 20250115 150242.290 SSL state connect:TLSv1.3 read server certificate verify:TLS_AES_256_GCM_SHA384
Trace : 4, 20250115 150242.290 SSL state connect:SSLv3/TLS read finished:TLS_AES_256_GCM_SHA384
Trace : 4, 20250115 150242.290 SSL state connect:SSLv3/TLS write change cipher spec:TLS_AES_256_GCM_SHA384
Trace : 4, 20250115 150242.290 SSL state connect:SSLv3/TLS write client certificate:TLS_AES_256_GCM_SHA384
Trace : 4, 20250115 150242.290 SSL state connect:SSLv3/TLS write certificate verify:TLS_AES_256_GCM_SHA384
Trace : 4, 20250115 150242.290 SSL state connect:SSLv3/TLS write finished:TLS_AES_256_GCM_SHA384
Trace : 4, 20250115 150242.290 SSL handshake done write:unknown:unknown
Trace : 4, 20250115 150242.379 SSL certificate verification: X509_V_OK
Trace : 4, 20250115 150242.379 SSL connect:SSL negotiation finished successfully
Trace : 4, 20250115 150242.379 3 paho-c-pub -> CONNECT version 4 clean: 1 (0)
Trace : 4, 20250115 150242.379 SSL alert read:fatal:certificate expired
Trace : 4, 20250115 150242.379 Connecting to serverURI 114.116.96.214:9883 with MQTT version 3

Can a clear result be returned when using an expired certificate to connect to the server?
From the SSL log, it can be seen that 'SSL certificate verification: X509_V'OK', but 'SSL alert read: fatal: certificate expired'.