CreateSiteAsync is not creating Modern Team Site collection and throws exeception.

VS 2022
Azure Function v4
.Net 6.0
PnP.Framework" Version="1.14.0"

Using Sharepoint username and secure password to do the authentication.
AuthenticationManager auth = new AuthenticationManager(SPAdminUserName, securePassword);

TeamSiteCollectionCreationInformation modernteamSiteInfo = new TeamSiteCollectionCreationInformation
{
Alias = "TestSite",
DisplayName = "TestSite",
Description = "TestSiteDesc",
Owners = ownersList,
IsPublic = true,
Classification = "General"
};

var createModernSite = await context.CreateSiteAsync(modernteamSiteInfo);

CreateSiteAsync is failing to provision the site and instead it throws below exception:
System.data.services.client.DataserviceRequestException. "An error occurred while processing this request"

Start by reproducing the failure with the shown VS 2022, Azure Functions v4, .NET 6.0, PnP.Framework 1.14.0 configuration and the CreateSiteAsync call. Inspect the resulting DataServiceRequestException and the site-provisioning request; done means the modern team site is created successfully without that exception.