Why is the word filter broken?

I used to filter words to avoid some tiktok topics. Then they started to break and it d3leted all my filters almost everyday and I needed to add them all back. Now I cannot even add them back. I add a couple of words and it restarts. I close the tab and they're all gone again. If I add multiple words it d3letes all of them. Is this happening to anyone else? This was my favorite part of tiktok, that I cannot do on any other platform, has anyone any idea on how to resolve it? Deleting and downloading the app again does not work.