XF 1.2 Modarators post editor does not show up

[vozihcs]

Hello,
Like said in the titel: One of my moderators conversation / post editor is not showing up.
What it should look like:

What it looks like:

On his mobile phone it works. He tried out all styles, all browsers, cleare cache...
And the problem - i guess - appeared when i made him moderator.
I really dont understand and hope you do.
I am glad about every helpfull answer!

 

[Paul B]

Making someone a moderator won't cause that.

If it's happening to one member only then it is a browser issue, especially considering it is working on his mobile browser.
He may need to disable all browser extension, clear cache, etc.