Genesys Speech API transcript endpoint returns 404

Trying to pull the voice-to-text transcript for a specific interaction ID using the Genesys Cloud Speech and Text Analytics API. I’m trying to get the transcript URL for a specific communication within a conversation, but I’m struggling to find the right endpoint. The interaction exists and has a speechAnalysisId, so the resource should be there. Is there a delay before the transcript becomes available, or am I hitting the wrong endpoint path?