[bug, API] Create session causes 500 internal server error from OpenAI API server

[mbuptivo]

Hi,
I constantly receive a 500 internal server error from POSTs on "https://api.openai.com/v1/realtime/sessions", like here.
This only happens when using API Keys associated to service accounts. Instead, keys created on real users work.
Ex:
"sk-svcacct-" key causes 500 error
"sk-proj-" key works