Trouble-Shooting.md

+**Here is a collection of problems that might occur and how to potentially solve them. Please add new insights ;-)**
+
+* On one of my maps the study experimentor overlay is not shown:
+> Maybe the map overwrites the gamemode, open the ``World Settings`` on that map an check:<br>
+    ![image](uploads/ccd972b6457aa6c348f9fc1df856be1a/image.png)<br>
+     This should be ``None``
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