Express-oauth2-jwt-bearer with mock-jwks - error "InvalidTokenError: no applicable key found in the JSON Web Key Set"

I’m using the following module in my express API project:

When I use a key copy/paste issued from AUTH0 I can call the API methods fine, and validate roles and permissions.

But when I use a token from mock-jwks I get the “InvalidTokenError: no applicable key found in the JSON Web Key Set” error.

Here is a screen from JWT.io with my test token:

Does anybody have suggestions as to how I might fix this?

Many thanks.