I forgot: Note 1: In case this helps: If you identified several different problems and you can fix some of them, feel free to make an upload for unstable (without using the closes statement in the changelog), even if it does not fix all the issues, and as soon as the package reaches unstable I can provide more builds logs with the new version.
Note 2: My offer for a VM to reproduce this still holds if it helps, please contact me privately for details. Thanks.