When I got my Huawei p30 pro in September, 2019, the facial recognition feature didn't work. I saved my face with and without glasses repeatedly and it didn't work. Around January, I gave up. This morning I noticed the p30 pro trying to identify my face so on a whim I went in and deleted the faces, put in two new ones, and it works perfectly. It's faster and more convenient than the fingerprint. I suspect on of the updates since January of this year did the trick. Maybe it was the 10.1 update.
Anyway, if you had problems, try again. It might work for you now.
Anyway, if you had problems, try again. It might work for you now.