Face Tracking - FaceExpressions Data

I use Unity 2021.3.20F1 and Oculus Integration V54.
I can perform facial tracking and AURA with my face expression.
Based on research purposes, I need to store information about facial expression weights.
But when I store the information about OVRFACEEXPRESSIONS.TOARAY (), the game will be stuck.
Is there any way to allow me to store the information and not stuck?