Hi Mike,
According to the release notes for v12.1  "All included assemblies have been built against Microsoft .NET Framework Version 4.0. You must have this version of the framework installed for the product to work."
How can these be .NET 5 compatible if they require the .NET Framework Version 4? 

When do you expect to release a version of your controls built on, and fully compatible with .NET 5, that don't require the .NET Framework?