Roblox facial age estimation glitch?

Verified my age with my face, since I am not giving them my government id. and It sets me as 13+. It was 13+ for like 1 or 2 months until earlier today, earlier today it randomly changed to 21+ and I was like oh okay, but a few hours later, it shoots me down to 16-17 and changes my birthday to 2008. Has anyone else experienced this or know why its happening? Why would it randoml change my age months later?

https://preview.redd.it/69uq575d9w4g1.png?width=296&format=png&auto=webp&s=bf3fefe88ba6f550aa9992ef62e6b6584da3c368

https://preview.redd.it/925zgppd9w4g1.png?width=819&format=png&auto=webp&s=eb1e60292286a132f6a4120a48f74a185f797853

https://preview.redd.it/dzmg8s6e9w4g1.png?width=886&format=png&auto=webp&s=9061c6d535d5e3d8129d7b0d78506395d16f6cb8