Computer flash back when change the font of text

OS:MacBook Pro (16-inch, 2019,Version 12.6)
PsychoPy version:2021.2.3
act:change the font color of the text
concrete problem: When I change the font color of the text, computer flash back.I had asked Apple after-sales for technical support and replace the new user system under the guidance of technical staff. However, the same problem still exists.