Thanks you for amazingly fast support!

Changing title, etc, of existing mod

If you need to change title, version, short description or anything else that seems un-editable, just edit the info.json of your mod and upload a new version (via the Edit tab on your existing mod). The mod portal shows the values from the most recently ...

I got the same problem with my mod. The description doesn't get updated with newer uploads.

So the extracted data from first uploaded info.json always stays and there is no possibility to change the description text.
Very annoying because I made some mistakes and want to add new core elements https ...