Did u reset Face ID?
Do first scan in normal upright position with phone directly in front of you.
Second scan lying down with phone at low angle from you chest or stomach.
This fixed it for me.
I posted a similar thread here: https://forums.macrumors.com/threads/face-id-and-lying-in-bed.2084060/#post-25379456
Do first scan in normal upright position with phone directly in front of you.
Second scan lying down with phone at low angle from you chest or stomach.
This fixed it for me.
I posted a similar thread here: https://forums.macrumors.com/threads/face-id-and-lying-in-bed.2084060/#post-25379456