I found the 'Inner Errors for details'. I click on the 'Deployment Validation Failed" error and on the right side is a summary section and a JSON section. When I click on JSON...I see this:
"{\"error\":{\"code\":\"InvalidTemplateDeployment\",\"message\":\"The template deployment 'AsrPsDeploy-FB123' is not valid according to the validation procedure. The tracking id is 'c6ea596f-c645-4f71-9f75-0c8ab63472fc'. See inner errors for details.\",\"details\":[{\"code\":\"QuotaExceeded\",\"message\":\"Operation could not be completed as it results in exceeding approved Total Regional Cores quota. Additional details - Deployment Model: Resource Manager, Location: eastus, Current Limit: 10, Current Usage: 6, Additional Required: 8, (Minimum) New Limit Required: 14. Submit a request for Quota increase at https://aka.ms/ProdportalCRP/?#create/Microsoft.Support/Parameters/%7B%22subId%22:%2289c2ee65-cded-45dc-b5a7-e8ca1ee10a35%22,%22pesId%22:%2206bfd9d3-516b-d5c6-5802-169c800dec89%22,%22supportTopicId%22:%22e12e3d1d-7fa0-af33-c6d0-3c50df9658a3%22%7D by specifying parameters listed in the ‘Details’ section for deployment to succeed. Please read more about quota limits at https://learn.microsoft.com/en-us/azure/azure-supportability/regional-quota-requests.\\"}\]}}",
Looks like I have a quota limit for the region cpus which is causing the error. I submitted a request to increase regional cores to 14.