why is there a tone difference between Reality Composer ios versions?

As shown in the image below, a difference in tone occurs when AR is executed between the two versions. Any solution?

Hi, this is likely a bug, either with ARKit or Reality Composer. Can you file a bug report on feedback assistant? Please reply with the feedback ID and I can send the bug to the proper team.

why is there a tone difference between Reality Composer ios versions?
 
 
Q