An extra wearing a mask. The mask is the problem.

Duffers will kill him😅💀

With Steve’s bat

They are probably wearing that because of the musty dusty crusty environment Angela is producing

Angela stinks

Oh man, they definitely messed up. I can’t believe no one’s caught that before! I wonder if they can go back in and fix it.

After a bit of searching I found a video of the scene to link:

https://youtu.be/Dn_fpAS1u_s

Go to 0:15 and you can clearly see it. It’s a little fast, but you can slow down the playback speed to see it clearer.

I saw this on tiktok!

Angela is the virus

Plot twist Angela caused covid

Funny when this kind of stuff happens in movies and tv. Like the starbucks cup showing up in a scene of Game of Thrones