Hey,
I think it's an easy problem to get rid of. Based on your description, it's possible that the issue is related to the browser or extension settings rather than your website.
To troubleshoot, start by updating your Chrome browser to the latest version and ensure you're not in incognito mode.
Additionally, disable any other extensions that might be interfering with cookies. If the problem persists, try clearing the cookies for the moz.com page and restarting your browser.
If all else fails, you can go to your browser settings and reset everything, including disabling and reinstalling the MozBar extension.
I've personally found this approach helpful in similar situations. Give it a try, and hopefully, it resolves the issue for you, assuming there are no underlying technical issues with Mozbar not showing Domain Authority and Page Authority (DA/PA).
Good luck!