Reproduction steps:
1. Open project “IN-33080”
2. Open scene “Unity_UIToolkit_AnimationBug”
3. Enter Play Mode
4. Wait for the transition to end and observe the Game Window

Expected result: The first button turns back to its original color
Actual result: The first button does not turn back to its original color

Reproducible with: 2022.2.0a5, 2022.2.10f1, 2023.1.0b7, 2023.2.0a5
Not Reproducible with: 2021.3.20f1, 2022.1.0a16, 2022.1.24f1
Couldn’t test with: 2020.3.46f1 (UI Document is not introduced), 2022.2.0a1 - 2022.2.0a4 (compiler errors)

Reproducible on: macOS Catalina 10.15.7 (Intel), Windows 10 (by the reporter)

Note: also reproducible in Standalone Player