Hey Diego,
Is this still occurring for you, or was it a one-time error?
Can you possibly include the full logs of running gcloud with "--verbosity debug" argument? Feel free to search for your app id in the output and replace it with "xxxxxxx", etc. if you have concerns about security.
This issue may need to be reported in the
Public Issue Tracker, so I'll also ask for as much information as I can right now, in addition to the full debug logs, such as:
* OS version
* SDK version
So, feel free to reply with the given information and possibly we can create a report in the Public Issue Tracker which will begin the work on finding the root cause of this.