Clip disappears from source monitor after color grading

After I move the color grading setting in the new color tab, the video from the source monitor disappears. Only after I restart the program it shows again.

Steps to reproduce:
    1. ...
 
Result: ...
Expected: ...
 
System info
    Application: Premiere Pro (Beta) v26.5.0.75
    OS: macOS v26.5.2, RAM: 24,00 GB GB, CPUs (logical): 10