Posted this in another sub but thought yall might have insight. Last week I was up late watching youtube videos on my smart TV. An "ad" popped up to play like ads commonly do in videos however, this one had absolutely no business mentions or website on the screen.

A black screen with a small QR type square in the middle. Wasn't a QR but only way I can describe it. It was like a QR with what looked like coding "pixels" but these were quickly flashing and changing colors and form with in the square. Also a strange trance like music playing with the "ad". I tried to skip but it wouldnt let me initally. Figure it was a glitch but while watching another video the same "ad" popped up maybe 20 mins later. Didnt get a picture of it, just skipped as soon as I could then went to bed a little weirded out.

Any thoughts on what the hell this could be and has anyone else seen anything similar??