Something is weird with the deployed objects, platform specifically. You can look at the registry entry for PlatformNodes, and see what it has for Platform 4 and 3. Somewhere, between the nodes, there is a mismatch. It could be that one did not get an update, or something is stuck. One sure way to cure.... Undeploy everything, delete the PlatformNodes folder in the registry for all of the nodes in your system, then deploy the galaxy and all platforms/objects again. If you open a support ticket and work with an engineer, you might be able to find it without the full undeploy.
