DaVu: I have, but this is not my point. I only asked for changelog and commit history and the changes inside. This does not require that you are able to reproduce the bug or I need to share dvds with you. I guess this is not legal.
If we know what has been changes in this ***one*** day, we may already have the root cause - at least the component. Than we can look for known bugs in the changed component. I do not expect many changes within one day! Something that should be easy to identify. And again this does not require any repro - it is only a question what code changes have committed.
Than we can reduce the debugging to related stuff.