Service discovery / debug log weirdness

Anyone seen this before? I’'m running wf 2.6.2 under JDK 1.5.0_07 with Postgres backend on RHEL 3 and testing with the Psi client. When I do service discovery, I only get results if I have the debug log enabled in the wf server. I have repeatedly tested this, toggling the debug log setting (and nothing else) and restarting wf, and service discovery only works when the debug log is enabled. Without the debug log I get no results in the service discovery window; with debug log enabled, I get the Public Chatrooms and Publish-Subscribe service.

This is just weird. Anyone recognize it?