Missing TikTok Screen Time Passcode Option

I had a screen time of 3 hours set for my child under Family Pairing. If she reached the 3 hr time limit I had the option to get a passcode to extend her time. Recently I find that there is no option to produce the code under Screen Time. In fact, when I went to get the code, it made me switch the screen time to a 2 hour limit, with no option beyond that and no option for custom time. Am I missing something? Did it move?