PauseAll and ResumeAll has no effect

RFA 7.5

I am trying to pause or resume for all instruments with reference to

https://docs-developers.thomsonreuters.com/1542702454237/4731/Docs/WebDocs/wwhelp/wwhimpl/js/html/wwhelp.htm#href=RFA%20.NET%20Developers%20Guide/RFANET_DevelopersGuide.1.421.html

&

https://community.developers.refinitiv.com/questions/9526/how-to-call-pause.html

When I call Pause and Resume. There is no error but nothing seems to happen as well.

internal long Login()
        {
            _loginReqMsg = (ReqMsg) new LoginMessage(this.connection.Config).Create();
            _ommItemIntSpecLogin = new OMMItemIntSpec { Msg = new LoginMessage(this.connection.Config).Create() };
            return this.connection.OmmConsumer.RegisterClient(this.connection.EventQueue, _ommItemIntSpecLogin, this, null); //loginHandle
        }
        internal void Pause(long loginHandle)
        {
            _loginReqMsg.InteractionType = ReqMsg.InteractionTypeFlag.Pause;
            _ommItemIntSpecLogin.Msg = _loginReqMsg;
            connection.OmmConsumer.ReissueClient(loginHandle, _ommItemIntSpecLogin);
        }
        internal void Resume(long loginHandle)
        {
            _loginReqMsg.InteractionType = ReqMsg.InteractionTypeFlag.InterestAfterRefresh;
            _ommItemIntSpecLogin.Msg = _loginReqMsg;
            connection.OmmConsumer.ReissueClient(loginHandle,_ommItemIntSpecLogin);
        }