Type Error with `publish` Method in Effect Layer

export const publisher = Layer.effect(
  EventPublisher,
  Effect.gen(function*() {
    const pubsub = yield* EventPubSub

    return EventPublisher.of({
      // This causes a type error:
      // TypeError: Cannot read properties of undefined (reading 'current')
      // at Object.get (file:///home/r24e23sdiw9w1oqo1ljpo851jbidnw-h5th/playground-1759838288856/node_modules/.pnpm/[email protected]/node_modules/effect/dist/cjs/MutableRef.js#cjs:72:26)
      publish: pubsub.publish
      // Use the below line instead and everything works.
      // publish: msg => pubsub.publish(msg)
    })
  })
).pipe(Layer.provide(EventPubSub.Default))