Time tracking hook issue

I’m using option_timetracking_changed webhook in order to keep web-panel updated according to time tracking changes. And it works perfectly for ‘Original Estimate’ field. Unfortunately it’s not working for ‘Time Tracking’ field.
Does it mean I should use different option for this field?

It, is resolved for you. Kindly give me details about this issue. I am facing the same issue which you mentioned above

Thanks in Advance