After upgrading to Sitecore 9.3 and GlassMapper 5+ the TemplateId and TemplateName are coming back as nulls. The item is retrieved using MvcCurrentContext.GetContextItem
TemplateId: {00000000-0000-0000-0000-000000000000}
TemplateName: null
The item model is generated as follows. Are there new settings for 5?
[SitecoreType(TemplateId=TestPage_PageConstants.TemplateIdString )]
virtual
?