"Service GetEndpointList has timed out" occurs with ThingWorx ODATA Connector GetEndPointList service in ThingWorx

• ODATA Connector service GetEndPointList failed after few minutes with timeout message

Service GetEndpointList has timed out

• TRACE log for Integration Runtime is reporting:

[L: TRACE] [O: c.t.c.p.m.DispatchingServerCommunicationModule] [I: ] [U: ???] [S: ] [P: ] [T: https-jsse-nio-8443-exec-21] message[com.thingworx.communications.common.messaging.APIRequestMessage]
..
[L: TRACE] [O: c.t.c.p.m.DispatchingServerCommunicationModule] [I: ] [U: ???] [S: ] [P: ] [T: https-jsse-nio-8443-exec-11] Processing Unbind admin message [msg id: 1]
...

[L: INFO] [O: c.t.c.p.m.DispatchingServerCommunicationModule] [I: ] [U: SuperUser] [S: ] [P: ] [T: https-jsse-nio-8443-exec-11] Dynamically de-activing observer [name: <name>-82b9c4a1-d891-4c6e-8a1e-a463c655177c]

[NettyClient-NIO-1] TRACE c.t.c.c.c.n.NettyClientConnection - [websocket id: 0-0] NettyClientConnection passing message to CommunicationEndpoint: ResponseMessage [requestId: 76, endpointId: -1, sessionId: -1, code: STATUS_SUCCESS, multipart: false, packet #: 0, total packets: 0]
Receiving binary Message:
01 80 00 00 00 4c ff ff ff ff ff ff ff ff 00 01 2e 4d 65 73 :�   L�������� .Mes
73 61 67 65 20 74 6f 6f 20 6c 61 72 67 65 2c 20 6d 61 78 20 :sage too large, max 
6d 65 73 73 61 67 65 20 73 69 7a 65 20 69 73 20 31 30 34 38 :message size is 1048
35 37 36 ff 																:576�

Length = 64 bytes.
2022-29-11 12:26:26.762 [NettyClient-NIO-1] TRACE c.t.c.c.e.DispatchingClientEndpoint - requests waiting for responses [0]:
2022-29-11 12:26:26.762 [NettyClient-NIO-1] WARN  c.t.c.c.e.DispatchingClientEndpoint - NULL MessageSynchronizationContext!  Request either timed-out waiting for this response, or it was received by mistake: ResponseMessage [requestId: 76, endpointId: -1, sessionId: -1, code: STATUS_SUCCESS, multipart: false, packet #: 0, total packets: 0]
2022-29-11 12:26:26.762 [NettyClient-NIO-1] TRACE c.t.c.c.c.n.ThingworxClientConnectionHandler - Channel Read interpreted as PONG

• Thingworx Foundation is hosted in PTC Cloud
• Integration Runtime (IR) is installed on premise
• Windchill is installed on premise
• Communication Server (Cnx) is receiving connections from IR