Just to update the thread in case anyone else runs into this:
After saving your form as source files, I can see there are two QdabraRules.xsd files – one is named QdabraRules1. I’ve seen this happen if the data connection is walked through in the designer and then the form is re-injected. InfoPath renames the schema file, appending the “1”, and then the injector adds a new file rather than overwriting.
I manually cleaned up your form and sent it back to you - hopefully this will take care of the issue. I've added a case in our bug tracking database so we can address this in a future qRules release.