It seems to be related to the new Creative Cloud Packager (version 1.7).
All the packs I had made with 1.5 exited correctectly.
All the packs I have make with 1.7 dont exit.
And it seems to be impossible to go back to 1.5 ....
I think the problem might be with this line (from uob_csis but I get the exact same):
RemoteUpdateManager version is : 1.7.0.25 (BuildVersion: 1.6; BuildDate: Tue Sep 02 2014 07:02:05 )
There seems to be an incoherence between the version and the buildversion.