I have been searching so long for this, and couldn't find a solution.
So, I have developed a pretty basic dialog flow project and deployed it onto firebase using inline editor. Now the 1st deployment works perfectly fine with the simulator. However, I changed some content to include suggestion chips and modify the responses as well; this gets reflected fine in dialog flow. And I can see the changes I have made.
But when I update the Draft and try to test it again in simulator/google assistant device, it doesn't load the newer changes. I am not sure if what I am doing is correct or not. Please help :(
Just now found this - https://discuss.api.ai/t/actions-on-google-integration-agent-updates-do-not-always-publish-correctly/7483
It seems many users are facing this issue.. :/