Word issue - indenting styles without user input

[harryjosephine]

Hi. We have mutiple O365 users on a single document. 

Certain styles (Heading 2, Heading 3, bullets) are being indented by ~1cm without user input. 

If the style is modified to remove the indentation, Word will re-insert the indent when the document is next opened. 

We've searched online to diagnose this issue to no avail. Are there any settings that we are missing?

Thanks in advance

[#2]

@harryjosephine 

Are these numbered styles? In that case, any changes to the left indent must be made in the Multilevel List dialog box, not via the Paragraph settings. See https://shaunakelly.com/word/numbering/numbering20072010.html.