I cannot guarantee that these Builds work without Problems. Especially if you use the Core or Standalone (Monolithic) it could happen that you cannot use your backlog with official versions anymore… (I try to minimize the risk…)
If you want to report a bug please keep in mind that the versions linked on this page are not official versions!
Test the official version if the bug is there too and if yes file a bug in the official Bug-Tracker.
If not: try to reach me (romibi) over IRC (for example in #quassel).