In logs I see:

2020-08-11T17:38:14.193+09:00 ERROR (1084-147C) <SwiftMQ-ConnectorPool-5> [JMSTunnelSSLSocketFactory] Certificate thumbprint verification failed, no matching thumbprint. Presented identity: router/hcs

2020-08-11T17:38:14.193+09:00 ERROR (1084-147C) <SwiftMQ-ConnectorPool-5> [JMSTunnelSSLSocketFactory] General error occurred: Unexpected certificate: router/hcs

2020-08-11T17:38:14.195+09:00 DEBUG (1084-1458) <Outbound JMS Forwarder Thread> [JMSRouter] Error creating topic config for topic: IceTunnelTopic com.vmware.vdi.logger.Logger.debug(Logger.java:44)

javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: General error occurred: Unexpected certificate: router/hcs

Please check VMware Knowledge Base

If issue still persist, Take a backup/Snapshot of connection server >uninstall connection server > Delete all certs from 'VMware horizon view certs store' (not from personal store) > Reinstall connection server.