I've noticed in the last couple of days that discussion layout is not available in Jira tickets. For me this layout has been incredibly useful and it's sudden disappearance is a mystery. I've enquired of our IT and there haven't been any changes to settings, so wondering (a) why its no longer available and (b) if it's possible for it to be reinstated.
It was a huge productivity boost to have the discussion thread side-by-side to the ticket description (saves me having to have the ticket open in another browser window).