NRE in CreateDriver in standalone player w/ Medium stripping level

[r618]

Unity 2020.3.11f
Windows standalone player
Mono scripting backend, .NET Standard 2.0
Managed Stripping Level Medium (default)

fieldInfo.SetValue in StateMachine.cs CreateDriver Ln 214
throws NRE as runtime
(object obj = constructorInfo.Invoke(...) == null)

Runs correctly w/ Managed Stripping Level Disabled