Watch page description below the video with proper open/close toggle, instead of a side bar.
< Feedback em YouTube - Proper Description
Youtube most likely has changed something in the layout, again. These a/b tests they do only affect some users.
Anyway, when you open the console, you should see messages like:
[YTPD] - searching for elements
[YTPD] - found ytd-watch-metadata
[YTPD] - found: #top-row
...
[YTPD] - done
if there is no "done", then some element structure was changed and can't be found, so the changes are not applied.
This is done so the page isn't rendered useless when the script fails to do some things but not others.
Actually, I just realised that I needed to turn on developer mode for Tampermonkey in the extension settings and the script works now, so 100% an issue on my end and nothing to do with the script, apologies.
The script stopped working around last month. RYD is not the issue (I turned it off and it still didn't work). I also have SponsorBlock, YouTube Shorts Block, and Unhook, but I disabled them all and the script still doesn't work so I don't think it's that either.
I turned on debug mode and took a screenshot. But I'm not sure about what I'm supposed to be screenshotting?