Viva Learning tag is mainly focused on the general issue of Microsoft Viva Learning troubleshooting. According to your description, your question is not in our support scope.The following suggestion is just for your reference:
I would suggest following the troubleshooting steps below to clear any browser issues experienced in the dashboard:
- Make sure to use an up-to-date browser. (e.g., Edge, can be downloaded using this link)
- Clear cache and cookies.
- On the Delete Browsing History window, make sure to uncheck Preserve Favorites, website data and check both Temporary Internet Files and Cookies; then click Delete.
- Allow all third-party cookies through the browser settings.
- Kindly try to register again. Register and schedule an exam | Microsoft Learn
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