Hey Ben,
If you or anyone at your company have an issue to report during normal use, rather than a specific issue for which you'd like one-on-one technical support, you should post to the Public Issue Tracker for the relevant product, such as
App Engine,
Cloud SQL, the
gcloud SDK tool, or the
Cloud Platform generally - this is the proper way to treat an issue with GAE. As explained above and in many threads in this forum, this forum isn't the right place to report issues, but is meant for high-level discussion.
While people do nonetheless make threads in this forum when experiencing an issue, the vast majority of the time they're the only one experiencing the issue, and it traces back to their own actions (incorrectly following a tutorial, misusing a certain pattern, failing to read and understand error output, etc). Rarely, though it does happen, they're posting (as here) about an issue which affects multiple users (perhaps unbeknownst to them at the time of posting). In such a case, it's regardless better to post in the Public Issue Tracker for the appropriate product, since this allows us to properly tag the thread for response by engineering who work on the issue, and keep this forum freed up for what it should be for, general and high-level discussion, instead of issue tracking.
So, feel free to create a PIT thread for this issue if you can't find one already to star or comment on. From a quick search of my own, it seems nobody has reported this issue properly yet. Including verbose logs output and as much information as possible about the issue and your system are going to make sure that it's processed as quickly as possible.