emqx-5.0.4-windows-amd64 8083订阅失败

EMQX
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TCP1883，连接、发布订阅正常；WS8083,连接成功，订阅失败！曾经是正常的。请帮忙分析什么问题，如何排查?

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打开 debug 日志或者用日志追踪功能看单个 clientid 的详细日志：日志追踪 (Trace) | EMQX 企业版 5.1 文档

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2023-08-25T16:06:42+08:00 [WS-MQTT] emqx_NDA2MD@192.168.30.19:64508 msg: mqtt_packet_received, packet: PINGREQ(Q0, R0, D0)
2023-08-25T16:06:42+08:00 [WS-MQTT] emqx_NDA2MD@192.168.30.19:64508 msg: mqtt_packet_sent, packet: PINGRESP(Q0, R0, D0)
2023-08-25T16:07:42+08:00 [WS-MQTT] emqx_NDA2MD@192.168.30.19:64508 msg: mqtt_packet_received, packet: PINGREQ(Q0, R0, D0)
2023-08-25T16:07:42+08:00 [WS-MQTT] emqx_NDA2MD@192.168.30.19:64508 msg: mqtt_packet_sent, packet: PINGRESP(Q0, R0, D0)
2023-08-25T16:08:43+08:00 [WS-MQTT] emqx_NDA2MD@192.168.30.19:64508 msg: mqtt_packet_received, packet: PINGREQ(Q0, R0, D0)
2023-08-25T16:08:43+08:00 [WS-MQTT] emqx_NDA2MD@192.168.30.19:64508 msg: mqtt_packet_sent, packet: PINGRESP(Q0, R0, D0)
2023-08-25T16:09:43+08:00 [WS-MQTT] emqx_NDA2MD@192.168.30.19:64508 msg: mqtt_packet_received, packet: PINGREQ(Q0, R0, D0)
2023-08-25T16:09:43+08:00 [WS-MQTT] emqx_NDA2MD@192.168.30.19:64508 msg: mqtt_packet_sent, packet: PINGRESP(Q0, R0, D0)

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