System.Exception: Multiple node elments can't be created.
   at HtmlAgilityPack.HtmlNode.CreateNode(String html) in C:\Users\Jonathan\source\repos\HtmlAgilityPack\HtmlAgilityPack.Shared\HtmlNode.cs:line 658
   at ASP._Page_Views_Partials_grid_editors_rte_cshtml.ParseMacrosAndImages(String content) in D:\Inetpub\Umbraco\Edlesborough-PC.gov.uk\Views\Partials\grid\editors\rte.cshtml:line 59
   at ASP._Page_Views_Partials_grid_editors_rte_cshtml.Execute() in D:\Inetpub\Umbraco\Edlesborough-PC.gov.uk\Views\Partials\grid\editors\rte.cshtml:line 6
   at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
   at System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
   at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
   at System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance)
   at System.Web.Mvc.BuildManagerCompiledView.Render(ViewContext viewContext, TextWriter writer)
   at Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer)
   at System.Web.Mvc.HtmlHelper.RenderPartialInternal(String partialViewName, ViewDataDictionary viewData, Object model, TextWriter writer, ViewEngineCollection viewEngineCollection)
   at System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData)
   at System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model)
   at ASP._Page_Views_Partials_grid_editors_base_cshtml.Execute() in D:\Inetpub\Umbraco\Edlesborough-PC.gov.uk\Views\Partials\grid\editors\base.cshtml:line 20