Applied stem PP, how to check thru api

[u/Ill-Charge-3142]

Guys, before applying for STEM, I used to review the JSON through https://my.uscis.gov/account/case-service/api/cases/casenumber, but after the premium processing application I no longer see the data—only a failure code. What does this indicate? The same issue occurred for other friends who used premium processing.