Sitecore Experience Editor Only Showing Container Components - sitecore

Question

Recently without any changes to the Sitecore 9.1 instance the experience editor is only loading the 'container' elements of the page.
Its happening on every page
Pages with video components (plain html) with embed codes do show the videos
Content exists in the tree, editing/publishing from the tree takes effect and works correctly.
Happening for all users
Checked the 'My Items' and does not have an effect on performance user to user,
Item permissions or browser does not have effect on issue
Recently upgraded Self Sign Certificate for xconnect, issue was notice two days later
Addition, here is an error I discovered on one of the pages when looking at the 'Publish > Preview' action:
Error Rendering Controller: {sitename}.Feature.BusinessProfiles.Controllers.RelatedNewsController,{sitename}.Feature.BusinessProfiles. Action: Index: An unhandled exception occurred.
at Sitecore.Mvc.Pipelines.MvcEvents.Exception.ShowAspNetErrorMessage.ShowErrorMessage(ExceptionContext exceptionContext, ExceptionArgs args)
at Sitecore.Mvc.Pipelines.MvcEvents.Exception.ShowAspNetErrorMessage.Process(ExceptionArgs args)
at (Object , Object )
at Sitecore.Pipelines.CorePipeline.Run(PipelineArgs args)
at Sitecore.Pipelines.DefaultCorePipelineManager.Run(String pipelineName, PipelineArgs args, String pipelineDomain, Boolean failIfNotExists)
at Sitecore.Pipelines.DefaultCorePipelineManager.Run(String pipelineName, PipelineArgs args, String pipelineDomain)
at Sitecore.Mvc.Pipelines.PipelineService.RunPipeline[TArgs](String pipelineName, TArgs args)
at Sitecore.Mvc.Filters.PipelineBasedRequestFilter.OnException(ExceptionContext exceptionContext)
at System.Web.Mvc.ControllerActionInvoker.InvokeExceptionFilters(ControllerContext controllerContext, IList`1 filters, Exception exception)
at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)
at System.Web.Mvc.Controller.ExecuteCore()
at System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext)
at Sitecore.Mvc.Controllers.ControllerRunner.ExecuteController(Controller controller)
at Sitecore.Mvc.Controllers.ControllerRunner.Execute(TextWriter writer)
at Sitecore.Mvc.Pipelines.Response.RenderRendering.ExecuteRenderer.Render(Renderer renderer, TextWriter writer, RenderRenderingArgs args)