Hi @chenwenfeng ,
Can you replicate this issue in an HTTP client like Postman using a stable version of the REST Admin API? If so could you share the replication steps for us to take a closer look?
If the issue only occurs with the node API library I would recommend checking the Github repo for any open issues, or creating a new one with all the steps you are taking as well as what API version you are using.
Cheers,