Actually, it appears that GAE Standard Environment was recently upgraded to use the new account chooser, which unfortunately caused an issue:
https://issuetracker.google.com/issues/38506275 On Thu, May 18, 2017 at 2:50 PM, 'Jordan (Cloud Platform Support)' via Google App Engine <[email protected]> wrote: > It is recommended to submit a feature request by filing a Public Issue > Tracker <https://cloud.google.com/support/docs/issue-trackers>. This will > then be properly triaged to the engineering team to investigate. > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/google-appengine. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/google-appengine/accc92be-f64b-4641-a209- > e23f54af81e8%40googlegroups.com > <https://groups.google.com/d/msgid/google-appengine/accc92be-f64b-4641-a209-e23f54af81e8%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/CAF38863M6V_VQp4B0CZ1%2BSgknCAXDDMK1H5aEGmJt6EgyvGP8w%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
