Form in the video was wrong.  It appears that he was having vision problems, since he did seem competent in Latin basic on the fluency with which he pronounced the word he could read, and you could see him bending closer to the book.  Problem with this video is where it cuts off.  At the very end you can see him taking something over to the altar, bending down and examining something.  Is it possible that he realized that he messed it up and was taking it aside to read it again and then proceeded to make another attempt at it?  We can't know based on where this video was cut off.  Why was this video edited at all?  There's no reason to "hide" the identity of "those present", since episcopal consecrations are public affairs of the Church.  Is it possible that it was edited for other reasons, such as to hide a re-attempt at the form?  Could either Bishop Slupski himself or one of the MCs pointed out the defect to him, resulting in the part at the end where he looks like he's studying something at the very end, when the video is cut off?

Whom was he consecrating a bishop at this time?

I agree it seemed like he was going to do it again. The video cutting off seems malicious.

Bishop Slupski, one who ordains married men to the priesthood.  One being Dr. Thomas Drowlesky.

Seems to be some unconfirmed and highly dubious rumor.

https://www.cathinfo.com/crisis-in-the-church/is-dr-droleskey-a-priest/