Hey there! Ok - let's take this one step at a time.

The problem did disappear when I opened an article in Incognito mode. I'll try disabling some addons and see if one of them is causing the issue.

I tried disabling all my extensions and I am still encountering the issue in my regular browser, I also then tried deleting cookies and site data and reloading and am still encountering the issue.   It is happening on all of my articles (I only have one world).

That seems like it is an issue with an extention - for example one of your antivirus or antispyware systems triggering by mistake (addons/plugins are a different thing to extensions) - If as you said the issue does not happen in incognito it has to do with the local setup of your system. :/ There is not much I can do about it but do check your Norton or similar system for JS blocking

Thank you, I can work around it by just making edits in incognito mode. It's probably some extension I can't remove that is required on my work computer.