Promotion Error

Hi Team

I'm getting "No Promotion Available" error when trying to do Sign Off. Server method is attached to Workflow and On Activate of the Sign Off.

Method is trying to promote the ECO state to Work in Progress from Start. I have required access to do it and I'm getting the option in Manual

Promote in ECO and I'm able to do it through AML Studio also.

What could be the possible issue ?