"gcloud app deploy" succeeds but still old version online

[Alex Schenkman]

I'm deploying a python GAE app using gcloud app deploy -v 4

The process ends successfully, and I can see the new version via the web interface and the command line.

I've even deleted the older versions. Only version 4 is up.

gcloud app versions list (shows only one version).

Still, the browser shows me version 3.

I have hard reloaded the page, used a different browser, and browsed to the page in incognito mode.

I have even taken a debug snapshot from the app running, and it shows version 3.

What am I missing on the deploy process?

Thanks in advance for any pointers.