Error loading MIM Portal after installing SharePoint Security Patch KB4484488

Hi all
I installed KB4484488 Security Update for SharePoint Foundation 2013.
As mentioned in the article I ran in the known issue but the solution doesn't help.

1.
I can see the log entry
Continuation : False
Process      : w3wp.exe (0x0414)
ThreadID     : 3980
Area         : SharePoint Foundation
Category     : Runtime
EventID      : 92liq
Level        : Medium
Message      : Blocking control with property traversal markup. [tagName: html][propName: __expr-val-dir][type: SimplePropertyEntry]
Correlation  : db47789f-d973-207d-912c-e30a6aa1aba3
Context      : {}

2.
I found SimplePropertyEntry 
https://docs.microsoft.com/en-us/dotnet/api/system.web.ui.simplepropertyentry.value?view=netframework-4.8
As described here https://support.microsoft.com/sw-ke/help/4572409/sharepoint-pages-not-render-when-using-unsafe-controls I tried to resolve the issue by creating the SafeControl entry in the web.config file.
<SafeControls>
      <SafeControl Assembly="System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Namespace="System.Web.UI" TypeName="SimplePropertyEntry" Safe="True" />

I also tried the ControlCompatMode entry in the same file.
<SafeMode ControlCompatMode="True" MaxControls="200" CallStack="false" DirectFileDependencies="10" TotalFileDependencies="250" AllowPageLevelTrace="false">
      <PageParserPaths>
      </PageParserPaths>
    </SafeMode>

Both solutions didn't work



So any help is appreciated
Henry