Any changes to the bot flow doesn't reflect in the integration via dialog API

Hello, It has happened multiple times with me where I modify the bot flow and publish it (I think publishing is only need for production version, for development version publishing is not required), still the integration will show the flows that I had already deleted.

Sometimes I wait for a few hours and it resolves on its own, but today it's been around 7-8 hours. It still shows the old flow.

Any idea why does this happen?