Could not load file or assembly 'Telerik.Windows.Documents.Flow

[sagittarius-rcoppins]

Describe the bug
When I run the below code, I get "Could not load file or assembly 'Telerik.Windows.Documents.Flow, Version=2020.3.1019.40..." This isn't even listed as a dependancy. Am I doing something wrong? I can't find any reference to this project even in the decompiled DLL, but can't get this DLL without subscribing to Telerik. Is there a way around this?

To Reproduce
I run the following in Asp.NET 4.8:

string appPath = System.Web.Hosting.HostingEnvironment.MapPath(@"\Views\Product");
var engine = new RazorLightEngineBuilder()
    .UseFileSystemProject(appPath)
    .SetOperatingAssembly(typeof(ShareBasketEmailViewModel).Assembly)
    .UseMemoryCachingProvider()
    .Build();
var result = engine.CompileRenderAsync("ShareBasketEmail.cshtml", model).GetAwaiter().GetResult();
return result;

Expected behavior
Not to receive the runtime error. result should be populated with the compiled ShareBasketEmail.cshtml with the data from model. Please see the attached redacted .csproj file:
Sitecore.Feature.Products.csproj.redacted.txt

Information (please complete the following information):

• OS: Windows 10
• Platform .NET Framework 4.8
• RazorLight version 2.3.1
• Are you using the OFFICIAL RazorLight package? Yes, from NuGet
• Visual Studio version 17.12.3

Additional context
Add any other context about the problem here.

[doxxx]

I'm facing a similar problem. A template is failing to parse because it can't find an assembly that is not referenced anywhere in my project.