DPM 2019 replica not showing in Azure vault
I've been configuring a new on-premise DPM 2019 server with offside backup to Azure in a dedicated Recovery Vault.
This appears to be working fine. I initially configured some databases and VMs which I can see in the Azure vault under DPM within Backup Items.
I've now added a couple of large file volumes (circa 2TB total) which appears to be fine on the DPM server itself. It took quite a while to upload all the data to Azure but this completed last night.
However there is no sign of this data in the vault, it's just completely absent.
Does anyone have any ideas? Whilst DPM itself says the Azure backup is fine, I frankly don't trust it if I can't actually see it in the Azure portal.