Hi,

Yes we use cache, but the cache should be properly cleared when you make some updates in Commerce Manager. If not, it is a bug. Can you list detailed steps to show that the cache was not cleared properly?

Regards,

/Q

If changes to the catalog in Commerce Manager are not reflected on the frontend site (but are so if you restart the frontend site application pool), the first thing I would suspect a problem in the remote event configuration or network problem.

<services>
      <service name="EPiServer.Events.Remote.EventReplication" behaviorConfiguration="DebugServiceBehaviour">
        <endpoint name="RemoteEventServiceEndPoint" contract="EPiServer.Events.ServiceModel.IEventReplication" binding="customBinding" bindingConfiguration="RemoteEventsBinding" address="soap.udp://239.255.255.19:5000/RemoteEventService" />
      </service>
    </services>
    <client>
      <!-- Uncomment this endpoint and the "RemoteEventServiceEndPoint" to enable remote events -->
      <endpoint name="RemoteEventServiceClientEndPoint" address="soap.udp://239.255.255.19:5000/RemoteEventService" binding="customBinding" bindingConfiguration="RemoteEventsBinding" contract="EPiServer.Events.ServiceModel.IEventReplication" />
    </client>
    <behaviors>
      <serviceBehaviors>
        <behavior name="DebugServiceBehaviour">
          <serviceDebug includeExceptionDetailInFaults="true" />
        </behavior>
        <behavior name="EPiServer.Business.Commerce.EventServiceBehavior">
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="false" />
        </behavior>
        <behavior name="CommerceSiteBehavior">
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="true" />
        </behavior>
      </serviceBehaviors>
      <endpointBehaviors>
        <behavior name="EventServiceEndpointBehavior">
          <webHttp />
        </behavior>
      </endpointBehaviors>
    </behaviors>
    <bindings>
      <customBinding>
        <binding name="RemoteEventsBinding">
          <binaryMessageEncoding />
          <udpTransportCustom multicast="True" />
        </binding>
      </customBinding>
    </bindings>

As Magnus mentioned, It works perfectly in my enviornments. Check Commerce Manager and front site Both. There may be chances UDP is not working, In this case you can switch to other protocols. 

Regards
Khurram