Issue with using Throttling Traffic Optimization / Log invocation policies


I am trying to implement the policy Throttling Traffic Optimization with Centrasite / Mediator 9.0.1
It works very well except when we have on a virtual service the policy “Log Invocation” with the following parameters : Log the following Payloads (Request + Response),Log Generation Frequency on failure and Send Data to local log
When deploying the virtual service to Mediator, we have the messaging in the mediator log
[MED.0200.0048E] Policy Log Failure Invocation-12 XML configuration has no evaluation element. XML: , where “Log Failure Invocation” is the name of the custom run time policy, whose action is the generic policy “Log invocation” as described above.

Thanks for help,

François Chapuzot