When I click on any heading style (e.g. Heading 2) it does not apply the style. Looking in the dropdown list I can see that it creates another heading style called Heading,2 - this then is applied everywhere I want to make a heading no matter what level I want the heading to be. And anyway, not even Heading 2 is applied. In documents I created when Styles was working properly, same problem. If i create a new file and write text and try to apply styles, same problem. If I try and apply heading style via the "Level" in the Paragraph dialogue box, the heading style is not applied. The documents as such are not corrupted, the Style file or whatever is corrupted, it seems to me. I am using Microsoft 365 and Windows 10. I have tried reinstalling Microsoft 365 but same problem. I have searched online but can find no trace of this problem, so I am hoping someone here can help me. Thank you for your expertise.
I can post a screenshot.