Is anyone else having trouble saving/favouriting videos?

Hi friends!

After downloading TikTok recently, I am unable to favourite posts into collections. When favouriting (using bookmark button), it says its successful, but nothing shows up in my favourited videos section. If I try to save a video into a collection, it says an error has occurred. Additionally, I'm unable to view all of my liked videos (it shows a handful of posts, around 24, but for how long I've been scrolling and liking, it should be WAY more).

If anyone knows a fix, I would appreciate it.

Thanks!!