Hi, I have recently upgraded to Umbraco 8.18.7 on Umbraco cloud and have started to get the following error fairly regularly (about 14 times overnight)

Message:
An unhandled exception occurred

Exception:
System.NullReferenceException: There is no current PublishedRequest, it must be initialized before the RenderRouteHandler executes
   at Umbraco.Web.Mvc.RenderRouteHandler.GetHttpHandler(RequestContext requestContext)
   at System.Web.Routing.UrlRoutingModule.PostResolveRequestCache(HttpContextBase context)
   at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

Does anyone know what may be causing this before I raise it with Umbraco support?

Many Thanks

Ben