Please give a screenshot as below to tell the version of Word you are using.
File>Account>Product Information>About Word
Note: please cover your private information if there is.
Does this issue occur when using other Office applications?
Do you have other version of Office installed on your computer?
If yes, please uninstall it completely.
Then change the Normal template (Normal.dotm) to see if the issue still exists.
If it doesn’t work, try to repair Office online.
If you have any updates, please post back.
What’s more, the Microsoft Q&A forum is a public place. In order to protect personal privacy information, I will modify your email address.
Thanks for your understanding.
Regards,
Erin
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