Cursor up/down doen't work

[MrGeneration]

Please update your Zammad to a newer version.
See the following Thread as this is a side affect:

Zammad-3.2.0: "The bird" does nothing

Chat needs to be disabled administrative. If you have clicked on notifications before, a page reload is required. Source code can be found on github within stable branch. https://github.com/zammad/zammad/commit/16fc27bdd606199399a4f07c3d8aaeef0452343a It is