Hi G B,
Thank you for reaching out to Microsoft Q&A forum.
It seems you're experiencing a lab glitch where it repeatedly loops back to a previous step. Clear your browser history to resolve cached issues and try using incognito mode to isolate potential problems related to extensions or settings.
Sometimes, simply refreshing the page can fix temporary issues with the lab. If the problem persists, close and reopen your browser to clear any temporary glitches.
Better whenever you start the lab don't open other windows until the lab completes.
We tried from our end; it's working fine for us. Kindly check the below screenshots.
If you are still facing any issue, please let us know in the comments and where you are encountering this error along with the screenshot for reference. We are glad to help you.
If the information is helpful, please Accept Answer so that it would be helpful to community members.
Thank you.