We’re experiencing an issue with a form that contains two fields and does not use any CSS or JavaScript. When a user opens the task, it takes about 1–2 minutes to load. Has anyone else encountered a similar issue? We’ve recently upgraded to Laserfiche Forms 11 Update 5. Thanks Team

Logs

An unexpected error has occurred. [LFF502-UnexpectedError]

Details:
URL: /Forms/Home/ProcessMonitoring/{{icon || src || svgUrl}}
Error: UnexpectedError
Date: 11/5/2025 9:11:58 PM (Arabian Standard Time)
HTTP Status Code: 500
Business Process ID: 0
User: lfforms
IP: 10.1.34.22
Browser: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36 Edg/142.0.0.0
Business Process Name: 

Stack Trace:
Caught exception: Laserfiche.Forms.CommonUtils.Exceptions.LFFormsException
Message: An unexpected error has occurred. [LFF502-UnexpectedError]

Inner exception: System.ArgumentException
Message: Illegal characters in path.
   at System.IO.LongPathHelper.Normalize(String path, UInt32 maxPathLength, Boolean checkInvalidCharacters, Boolean expandShortPaths)
   at System.IO.Path.NormalizePath(String path, Boolean fullCheck, Int32 maxPathLength, Boolean expandShortPaths)
   at System.IO.Path.GetFullPathInternal(String path)
   at System.Security.Util.StringExpressionSet.CanonicalizePath(String path, Boolean needFullPath)
   at System.Security.Util.StringExpressionSet.CreateListFromExpressions(String[] str, Boolean needFullPath)
   at System.Security.Permissions.FileIOPermission.AddPathList(FileIOPermissionAccess access, AccessControlActions control, String[] pathListOrig, Boolean checkForDuplicates, Boolean needFullPath, Boolean copyPathList)
   at System.Security.Permissions.FileIOPermission..ctor(FileIOPermissionAccess access, String path)
   at System.Web.InternalSecurityPermissions.PathDiscovery(String path)
   at System.Web.HttpRequest.MapPath(VirtualPath virtualPath, VirtualPath baseVirtualDir, Boolean allowCrossAppMapping)
   at System.Web.HttpServerUtility.Execute(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage)
   at System.Web.HttpServerUtility.Execute(IHttpHandler handler, TextWriter writer, Boolean preserveForm)
   at System.Web.Mvc.Html.ChildActionExtensions.ActionHelper(HtmlHelper htmlHelper, String actionName, String controllerName, RouteValueDictionary routeValues, TextWriter textWriter)
   at System.Web.Mvc.Html.ChildActionExtensions.Action(HtmlHelper htmlHelper, String actionName, String controllerName, RouteValueDictionary routeValues)
   at ASP._Page_Views_Home_ProcessMonitoring_cshtml.<Execute>b__6() in c:\Program Files\Laserfiche\Laserfiche Forms\Forms\Views\Home\ProcessMonitoring.cshtml:line 47
   at System.Web.WebPages.WebPageBase.<>c__DisplayClass42_0.<RenderSection>b__0(TextWriter tw)
   at System.Web.WebPages.WebPageExecutingBase.WriteTo(TextWriter writer, HelperResult content)
   at ASP._Page_Views_Shared__Layout_app_cshtml.<RenderSectionTopHeader>b__9(TextWriter __razor_helper_writer) in c:\Program Files\Laserfiche\Laserfiche Forms\Forms\Views\Shared\_Layout.app.cshtml:line 115
   at System.Web.WebPages.WebPageBase.Write(HelperResult result)
   at ASP._Page_Views_Shared__Layout_app_cshtml.<Execute>b__32() in c:\Program Files\Laserfiche\Laserfiche Forms\Forms\Views\Shared\_Layout.app.cshtml:line 194
   at System.Web.WebPages.WebPageBase.<>c__DisplayClass42_0.<RenderSection>b__0(TextWriter tw)
   at System.Web.WebPages.WebPageBase.Write(HelperResult result)
   at ASP._Page_Views_Shared__Layout_cshtml.Execute() in c:\Program Files\Laserfiche\Laserfiche Forms\Forms\Views\Shared\_Layout.cshtml:line 127
   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.WebPages.WebPageBase.<>c__DisplayClass40_0.<RenderPageCore>b__0(TextWriter writer)
   at System.Web.WebPages.WebPageBase.Write(HelperResult result)
   at System.Web.WebPages.WebPageBase.RenderSurrounding(String partialViewName, Action`1 body)
   at System.Web.WebPages.WebPageBase.PopContext()
   at System.Web.WebPages.WebPageBase.<>c__DisplayClass40_0.<RenderPageCore>b__0(TextWriter writer)
   at System.Web.WebPages.WebPageBase.Write(HelperResult result)
   at System.Web.WebPages.WebPageBase.RenderSurrounding(String partialViewName, Action`1 body)
   at System.Web.WebPages.WebPageBase.PopContext()
   at System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context)
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass3_1.<BeginInvokeAction>b__1(IAsyncResult asyncResult)