カラーラベルでの選択ができない

"I can't select using color labels when editing: The color label display sometimes appears and sometimes doesn't. Please tell me how to fix this. (The flag and ★ display also have the same problem.)"

Someone else reported similar symptoms last week:

https://community.adobe.com/t5/lightroom-classic-discussions/color-labels-not-working/m-p/15357144