Athletics game update endpoint

Hi,

Does anyone use the "Athletics game update" endpoint (PATCH https://api.sky.blackbaud.com/school/v1/athletics/teams/{team_id}/schedule) to update game info? No matter what I try, in script or in the API browser, all I ever experience is:

HTTP/1.1 500 Internal Server Error

cache-control: no-store, must-revalidate, no-cache
content-length: 131
content-type: application/json; charset=utf-8

{
"errors": [{
"error_code": 500,
"error_name": "Server Error",
"raw_message": "The service is currently unavailable, please try again."
}]
}

Other calls in same session working fine.

Thanks,

Kevin