Greasy Fork

I use a lot of your scripts for youtube, maybe some of it cause it. I haven't test it

This could be due to the recent update of this script.

Check again whether the version is latest or not. (now is 0.18.13)

Please tell me which browser are you using, and the url of this video page.

Just fixed the issue in 0.18.14.

Please check again.

Firefox
Violentmonkey

v0.18.9 when I post that issue. The earliest option to auto update is 1 day, but I regularly check for updates multiple times a day.
I check and it has been fixed, thank you.

I forgot to tell, it happens only when this script enabled. When it stills an issue.