Newtonsoft.Json 12.0.3 introduced usage of the nullable context. It works fine when building the package thanks to the Microsoft.Net.Compilers.Toolset NuGet package that can compile to .NET Framework ...
After importing the Rewired Glyphs package, I get 26 errors in the console. Unity will not enter play mode, prompting me to fix all compiler errors first. But the errors do not show up in Visual ...