.Net Add-ins don't load automatically

#1
I have "compiled" the DotNetExample application that comes with the app.

The Tiegha .DLL's appear to be complied to .Net 4.8 Framework as opposed to the .Net 4.5 that CSM says to use. I updated to code provided to compile to .Net 4.8 Framework, however I cannot get the .dll's to automatically load into the app as described in the "DemandLoadingDotNetApps.txt". There are different instructions in the app's "ApplicationPlugins" folder in "ApplicationPlugins_readme.txt" - but neither seems to work.

I have also noticed my MapWorks plugin no longer loads automatically in 13.1 whereas it worked in 13.0

I also seem to have an issue with access to using VBA in the upgraded app, so I'm wondering if there is a bug or something else.

Anyone have any ideas?

Thanks