Hi Jacob Smith,
Thank you for contacting us through the Microsoft Q&A forum.
We sincerely apologize for any inconvenience you experienced in accessing the sandbox.
To address the reported issue, kindly follow the troubleshooting steps as outlined below:
Step 1: Sign-out from all the tabs in the current browser and clear the cache files and try login again with your learn id credentials.
Step 2: Sign-out from current browser login and try to login from an incognito window/in-private window.
Step 3: Switch to a different browser and try login again.
Step 4: Login with a new personal email account into the learn path in a completely new browser and check.
Step 5: If attempting to create a resource in a subscription lacking necessary permissions, we recommend signing up for an Azure free account through the provided link https://azure.microsoft.com/en-us/free and creating a sandbox environment.
Refer to this link for guidance on running Microsoft Learn training exercises in your own subscription.
Additionally, kindly find the below link for your reference:
https://learn.microsoft.com/en-us/training/support/faq?pivots=sandbox
If you find this information beneficial, we kindly request that you acknowledge it by clicking the "Upvote" and "Accept Answer" buttons on the post.
Thank you.