Did I hear my name mentioned?
Rajesh, if this is just an Afterburner bug related issue I can fix it. Shall I assign it to me?
The course headingblock was disabled because of the hundreds of requests from Moodlers to either change Topic outline or Weekly outline, or hide them. Which is I think what you are asking me to reverse?
I have not have time to check this out...so this is just pure guess work at this time of the morning, but I am certain this is what it is. Since you are the first to ask about this, I am certain no one has missed it that particular heading.
That said is there any way that Course writers (Admins/Editing Teachers) can enter a custom name for "Topic outline" or "Weekly outline" when creating a course? This has been asked for time and time again. If you could suggest a fix for this I would be quite willing to do the work.