CSS broken in Chrome

[JAS84]

Help please. For some reason, custom CSS isn't showing up for me in Chrome on Reddit, Wikipedia, and Wikia/Fandom. Wikipedia and Fandom are both showing text in Times New Roman with a screwed up layout, and Reddit is using the default theme instead of individual subreddits' custom ones. I wonder what's causing that?
Could it be a bug in Chrome 91.0.4472.114?

[Neil Jones]

Issues in profile based browsers (like Chrome and Firefox) are usually caused by one of two things: The profile, or an extension.

Initially disable all your extensions, if the issue goes away an extension is causing it, otherwise make a new profile. If issue goes away profile problem:
https://www.lifewire.com/managing-multip...ers-446175

[JAS84]

Thanks - turns out the culprit was AdBlock.