I posted about a similar issue yesterday, but now I can't find that post. My Roboto font works fine in Illustrator but in XD it is using the wrong font family and won't let me switch it out.
I can't uninstall Roboto (Windows 10) as it says it's in use. Restarting computer doesn't help. I also uninstalled and reinstalled XD and that did not fix the issue.

Hi there,
Sorry for the delay in response. I would like to follow here if you are still experiencing issue, I would request you to please get in touch with our support team using this link: https://helpx.adobe.com/in/contact.html so that you can get the immediate assistance.
Hope it helps.
Thanks,
Harshika