RPE 1.3 was recently released and the very first thing I encountered with it was that you can no longer generate DOORS Next Generation documents from a DNG-generated document specification (.dsx) file in the RPE Launcher.
If you don’t know what I’m talking about, this article on Dragos’ RPE Actual should clear it up. This technique will no longer work with RPE 1.3 due to the “cookies” section of the .dsx file not being available.
IBM can provide you with a fix. So open up those PMRs, folks. There’s also a related issue with how oAuth is misbehaving for DNG in RPE 1.3, so hopefully IBM will have a patch for these issues shortly.