Could not fetch manifest (Access denied.)

[bswank]

Hey, there! Thanks for all the hard work you all put in. I'm having trouble getting my Operation Registry up and running.

Intended outcome:
Start API & apollo-server-plugin-operation-registry starts blocking unregistered operations.

Actual outcome:

Apollo Server could not begin serving requests immediately because the operation manifest could not be fetched.  Attempts will continue to fetch the manifest, but all requests will be forbidden until the manifest is fetched. Could not fetch manifest <?xml version='1.0' encoding='UTF-8'?><Error><Code>AccessDenied</Code><Message>Access denied.</Message><Details>Anonymous caller does not have storage.objects.get access to engine-op-manifest-storage-prod/71a8658c58f3edfbf807fb48352823488d8da9801d85c295714950c290e07935d8a43b33f31614aaf2d1a6f7f045b83f8a58c8d3bb6f31d45fd10da5d9186e37/9327c42b61236bf40adfaa5ca4f60a5a101ab91813235d2c7f1a0eff26abaf14d4244bafd892c2d32fd1ae8aa5088c4e6c555bc88f8a32892f12f410ef75d41a.v2.json.</Details></Error>

I fear this may have to do with my account. Not sure about that, though. Could also be related to #996

I've already tried re-pushing both client and server with apollo client:push and apollo service:push. Both succeed:

Client:

Successfully pushed 38 operations from the WebApp client to the thegospelfund service in Engine

Server:

id      schema         tag
──────  ─────────────  ───────
35f5cb  thegospelfund  current

Versions are as follows:
apollo-server-plugin-operation-registry: 0.1.0-alpha.4
apollo CLI: apollo/2.12.3