Fly deploy not working in production environments

I have multiple production environments and it looks like the depot deploy is not working:
(SJC region)

Error: failed to fetch an image or build from source: error building: input:3:2: ensureDepotRemoteBuilder {“code”=>“internal”, “message”=>“internal error”}

fly deploy --remote-only --depot=false appears to be working
fly deploy --local-only crashed as it cannot find unzip so I am guessing there are some issues.

See here: deploys have started failing - #6 by dar