These glitches are common. I’ve seen many clips of people’s filters breaking on a stream or switching to someone else in the room like a pet. It’s weird though that the same exact plastic look for women remains popular to viewers even though it is obviously fake. Many may influencers share the same exact look.
This video has an overview of the 4 most common beauty tests currently trending on Chinese social media and shows the fish test in action: https://www.tiktok.com/@ur.chinese.unc/video/757926094181294...