Request webhook re-activation from production to sandbox json scenario import

I want to recreate a production scenario in sandbox for some changes and testing. I imported the production json into a new scenario with sandbox connections, removed the production scenario custom webhook and added a new custom webhook for the sandbox connection scenario. The new webhook is activated but errored out on the first send since the request ID and all other data wasn’t received.

The production webhook is triggered by new, unconverted request creation and creates old and new state data fields. Many of the webhook data fields are used throughout the scenario. When I create a new unconverted request in sandbox, the new scenario doesn’t run through the webhook. I know I’m missing something here, but can’t figure this out. Thanks for any help with this.