Auto role membership not getting evaluated on create event with Custom Post-Proccess event handler

 OIM 11.1.1.5

We have created a simple custom postprocess event handler that populates a postcode field. The postcode field then drives a membership rule into an OIM Role called "PostCode1" if the postcode==1. This membership rule works fine when there is no custom event handler deployed. After deploying the Custom postprocess event handler, the autogroup membership rule is not evaluated. The only way I can get the rule to evaluate is if I manually do an update on the User in OIM.

Has anyone got autogroup membership to work after a simple postprocess event handler kicks off.. Below is a sample of my eventhandler.xml.  I'm also using EntityManager to update the postcode and username fields..