Visual Studio 2022 - Window design tools window doesn't show Wisej tools

I have developed an application using Wisej.net and it has worked well.  Now, when I go into design mode on a window and try to add i.e. a textbox or other control, there are no Wisej options.  This just began happening within the last week.

When I try to open any window (form) in VS, I get the error “Value cannot be null. Parameter name: instance”.  If I add a Windows form, the new form does not get this error, but also does not have any Wisej controls within.

When I compile my application with Wisej windows/forms defined (which I can’t open to edit), everything compiles and runs fine…

Any suggestions on how I might re-install or otherwise get them to show?

Microsoft Visual Studio Community 2022 (64-bit) – Current
Version 17.14.14

Microsoft .NET Framework

Version 4.8.09032

Thanks in advance.