@Jeff Wang - Welcome to Microsoft Q&A and thanks for reaching out to us.
After looking into this, i have found that when an API title or userID contains anything other than English, its going blank which is a bug.
and we need to troubleshoot this further, we would like to put you in touch with a support engineer so you can receive 1:1 support for a deeper investigation on this.
We would need you to send us an email at AzCommunity@Microsoft.com by providing below details.
Subject : ATTN:Monika
- Subscription ID
- A link to this thread.
Please email us these details and we will work with you closely to get this issue taken care of and also post any findings here in the thread so the community can benefit from it.
Thanks in advance. Looking forward for your email.