[tor-relays] Relay metrics - chart never populates

Does anyone know why I never see any data in the chart showing the number of clients using my bridge over time? https://metrics.torproject.org/rs.html#details/A675511F2F8EDD6974C3C093B8F32... I'm just concerned I haven't configured something correctly. Thanks. Sent with [ProtonMail](https://protonmail.com) Secure Email.