Oculus notifications are sent "successfully" but never received by users

Hello there 🙂

I'm implementing social notifications for our app, so we send a notification when users share in-app creations with their oculus friends. Problem: the oculus API is returning success responses, but users are not receiving anything.

Dashboard setup:

• we've created an Event-Based notification in the dashboard, using the category "Social"
• it's been reviewed and approved, and has the id "123123123123"

App setup:

• authenticate in-app using the SDK with Users.GetLoggedInUser()
• retrieve Friends with Users.GetLoggedInUserFriends()
• get the current user access token with Users.GetAccessToken()
• send a request to https://graph.oculus.com/123123123123/triggered_notifs_with_text_map?recipient_ids=[987654897465]&access_token=FRLA...FkNsQT0aCbxoymIoZD
• on our logs, we can see the response from the api is { success: true }

...but nothing is ever received by users

The only way I managed to receive a notification was to curl the graph.oculus.com endpoint directly with my own OculusId as the recipient and my own AccessToken, essentially sending a notification to myself. Any other recipients will not receive the notification, despite us being mutual follows.

What am I missing?