A family of Microsoft word processing software products for creating web, email, and print documents.
Dear Simon Hall4
Good day!
In general, there may be a problem with the compatibility of the Word app and the device. If this is happening on multiple devices and you mentioned that other users have reported it as well, but none of them have been resolved.
I'm not sure if you've tried the following suggestions, but if you don't you can try fixing Office apps, you can generally troubleshoot most of the Office apps themselves:
Repairing Office from the Control Panel:
Go to Control Panel -> Programs -> right-click on Office applications’ icon -> Change -> Online Repair.
If you've already tried the above tips, or if they didn't help you. To save your time, I would like to ask you can raise a service request in Microsoft 365 admin center, You can reach out to Microsoft support and ask them to help you collect your app's activity logs to see if you can find the specific cause of this phenomenon, and if it's a compatibility issue, they can fix it at the development level.
Sincerely,
Tin