openiddict-core: An unhandled exception after updating to 2.0.0-rc1-0733

My project has updated to the version 2.0.0-rc1-0733 of OpenIddict today (we set version as “2.0.0-*” to always compile against the latest update). We modified our implementation for stores and replaced all arrays used there with ImmutableArray.
Then we compiled and ran the project. The app runs well but during the token exchange process we got the following exception:

An unhandled exception of type 'System.ExecutionEngineException' occurred in AspNet.Security.OpenIdConnect.Extensions.dll

The exception occurs during controller’s SingIn method call.