I am really sorry but from your description I do not understand what you mean and we haven't seen or had anything like that reported before - can you show us a screenshot of what you are seeing?

How can I send this to you?

You can link to an image from an image uploading website, or upload it on World Anvil and link the image here

  I hope this helps. The "issue" is that underneath the icon the writing thing appears. Im very sorry that I cant find the right word for it, making this unnecessarily difficult.

Do you mean you get a cursor pointer on top of the icons of the sidebar?

Yes

Is this your mouse cursor, or does that cursor stay after you move your mouse away? If the latter, does it disappear when you click somewhere else on the page? If it does, then it sounds like a browser extension may be trying to make the page content editable.   Do you have any extensions like Magic Editor or Tamper Monkey installed in your browser? There is no input or anything there, so the text cursor should only be possible if something is adding a certain flag to the page content - and that usually indicates a live HTML/CSS editing browser extension.

The cursor stays after I move the mouse and it does disappear. What you are describing does sound a lot like what is happening, although even now that i have removed all extensions it is still happening. But because this problem now rather appears to be clientside and not a bug, I apologize for the inconvenience and thank you for your efforts to help me with this. I will eventually find out what the problem is.

If it helps you - I also had the same issue in the past on an different place :D