Hello, I see you are using the default resource settings <https://cloud.google.com/appengine/docs/flexible/custom-runtimes/configuring-your-app-with-app-yaml#cpu>in your yaml file that doesn't seem to be sufficient. Could you increase the CPU (I recommend at least 4 cores) and memory to see if this resolves the issue? If the issue still persists, you may report it to the public issue tracker <https://cloud.google.com/support/docs/issue-trackers> so that we would be able to look into it efficiently.
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