North Koreas Kim Jong Un Stays Out of View

Kim Jong-un has been absent from public view for three weeks, missing a recent Parliament meeting. Speculation about his health, including a possible limp and gout, has arisen. Despite these concerns, North Korea maintains that Kim is still leading with enthusiasm.

What was the occasion during which the video of Kim Jong Un was unearthed?

According to Xinhua, what is Kim Jong Un's current status in relation to leading the people?