Hi, Ernesto,
Nothing has changed in the working-set definitions in some while and they seem to work for me. I deleted all of the working-sets from my workspace's Oomph workings-sets model, ran the Oomph setup with only the working-set tasks selected, and this is the result:
Perhaps your working-set model has some junk left-over from earlier iterations of the setup model and could use a similar cleaning? It’s especially a problem if you imported the setup from various of its previous locations, because the working-set model will have repeated references to the same definitions in the various instances of the setup model reachable through its different historical URIs (local filesystem, http-git, the Papyrus-RT website, etc.) Henceforward, with the setup at a stable URI, the replication problem should not recur.
The Tycho Projects Configurator is just another of the connectors in the Maven Connector Discovery thing launched from the preferences. If you don’t see it there, then probably you already have it installed. I haven’t had a chance to think again about how best to include these connectors in the set-up (the repositories that host them are so very specific to each micro-version that maintenance will be a pain).
The problems that I get with the Tycho Projects Configurator and Maven Build Helper connectors installed are attached.
Christian