Amazfit Watch faces

I changed a T-REX to a T-REX PRO and I can't change the face of the watch. I've checked everything in terms of connection and nothing advances. Before, it worked perfectly with the T-REX.

App version :3.4.112
ZEPP APP
watch model : TRex Pro
FIRMWARE: 2.0.1.02
Phone model : iPhone 8 PLUS
OS version ...