Massive Black Sphere Captured Next To Sun — Identified??

A video depicting a massive black sphere captured next to the Sun has made its rounds on the forums. Explanations abound as to what it is. Explanations went all the way to the completely ridiculous. Well in this video, C.  Alex Young takes the task of identifying the ‘unknown’ massive black object captured next to the Sun. He says it is a very common coronal cavity associated with a filament. A eruption of the filament with a CME is also observed in the video. This seems like a very plausible explanation.