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Sorry I didn't get to this sooner, this was actually an issue with Google Cloud Storage (incident here: https://status.cloud.google.com/incident/storage/16029 ). Kinvey Multi-Tenant servers were affected by this outage which persisted after this outage was marked as resolved by Google. We opened a separate ticket with Google and got this issue resolved about 15 - 20 minutes ago.
Please let me know if this issue reappears or persists for you.
I am trying to download a file from the web interface ( a user photo) and I get an "Internal error" while everything worked fine about 8 hours ago.
"Internal error - We encountered an internal error. Please try again."