This is a known issue <https://issuetracker.google.com/73246453> which is already being looked into by engineering team, however there is no ETA for the fix. You could star the case <https://issuetracker.google.com/73246453> to receive any updates on the fix.
I should Note that the Public Issue Tracker <https://cloud.google.com/support/docs/issue-trackers> is for reporting Google-end issues and feature requests. -- 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/59b6a55b-9a9d-4efc-b198-beb0a341d46b%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
