I might have identified a bug related to

export class SimpleWorkflow extends WorkflowEntrypoint<
  Env,
  SimpleWorkflowPayload
> {
  async run(event: WorkflowEvent<SimpleWorkflowPayload>, step: WorkflowStep) {
    console.log("Simple workflow started", event.payload);

    await step.do("testing timeout", async () => {
      console.log(`Initializing test: ${event.payload.name}`);
      const eventResponse = await step.waitForEvent("waiting for event", {
        type: "test",
        timeout: 10000,
      });
      console.log("Test event received", eventResponse);
      return { status: "initialized" };
    });

    console.log("workflow complete");
  }
}

export class SimpleWorkflow extends WorkflowEntrypoint<
  Env,
  SimpleWorkflowPayload
> {
  async run(event: WorkflowEvent<SimpleWorkflowPayload>, step: WorkflowStep) {
    console.log("Simple workflow started", event.payload);

    await step.do("testing timeout", async () => {
      console.log(`Initializing test: ${event.payload.name}`);
      const eventResponse = await step.waitForEvent("waiting for event", {
        type: "test",
        timeout: 10000,
      });
      console.log("Test event received", eventResponse);
      return { status: "initialized" };
    });

    console.log("workflow complete");
  }
}