I've staged a Jenkins build of type Maven 2/3 successfully (tried different project structures, multi-project and single-project). Afterwards I want to promote the release to a dedicated repository. On Jenkins' "Artifactory Pro Release Promotion" page, I'm entering reasonable values to the fields and tried to "release", with "use copy" and "include dependencies" (but no permutation works). After submitting, the page redirects to the page "promotion is in progress". Nothing happens, no errors are displayed.

Trying the same steps again, navigating again to the promotion page and submitting, the page now reloads immediately, the fields are empty again. No redirect (will redirect again i.e. go back to scenario 1, as described above, after re-starting Jenkins). Nothing happens: again no further action in Jenkins and no action in Artifactory. Nothing to see in neither Jenkins logs nor Artifactory logs. What could be wrong? deploying and staging works, but not promoting. Where is the place to scan for further information what is going on under the hood? Looks like, nothing is reported somewhere to trace the process. I'm using Jenkins 1.410 with jenkins/artifactory 2.0.0 and Artifactory online, most recent version. Thank you.