How to reproduce:
1. Open the user’s attached “buttonIssue.zip” project
2. Open “Gameplay.asset” (Assets/UI Toolkit/Settings/Panel Settings/Gameplay) and change “Scale Mode” to “Constant Physical Size”
3. Build And Run the project on a mobile device
4. Press on one of the squares and then on the red square and observe the result

Expected result: Black square becomes red
Actual result: Black square doesn’t become red

Reproducible with: 2021.3.32f1, 2022.3.14f1, 2023.2.1f1, 2023.3.0a15

Reproduced on:
VLNQA00494 - iPhone 14 Pro Max, 16.3.1 iOS
VLNQA00358 - iPhone 12, 14.1 iOS
VLNQA00392 - iPad (9th generation), 15.0 iOS
VLNQA00310 - iPad Pro 12.9", 13.4.1 iOS
VLNQA00409 - Galaxy Z Fold3 5G (SM-F926B), CPU: Snapdragon 888, GPU: Adreno 660, OS: 11
VLNQA00334 - Xiaomi Mi A3 (Mi A3), CPU: Snapdragon 665 SM6125, GPU: Adreno 610, OS: 11
VLNQA00017 - Huawei Nexus 6P (angler), CPU: Snapdragon 810 MSM8994, GPU: Adreno 430, OS: 8.0.0

Not reproducible on: No other environment tested

Notes:
-not reproducible if using “Scale With Screen Size”
-not reproducible in the Editor and Standalone Player (macOS)