Any ideas? Clutch, Pressure Plate or Tranny?

[bmwillia]

I have a knocking noise that started while driving the car it is coming from the bell housing area. The noise started after I ran out of gas, put gas in the car and was heading home. the noise goes away when the clutch pedal is in and the clutch stops spinning. I have viewed this through the inspection opening in the transmission. I pulled the transmission, clutch and pressure plate. Turning the tranny by hand nothing seems out of sorts and visual inspection of the clutch and pressure plate don't reveal anything obvious to me but I may just not know what I am looking at.

I am attaching a video link. Any help on what to look at would be appreciated.

https://youtube.com/shorts/5WbLKaHCXcA?feature=share