Reproduction steps:
1. Create an empty project
2. Install the “Input System” package through “Window\PackageManager”
3. Enable “File\Build Setting\Developement Build”
4. Build And Run the project
5. Open “Window\Analysis\Input Debugger”, select “OSXPlayer” and attach “Devices\Remote\OSXPlayer\Mouse1”
6. Click anywhere in the build
7. Observe the Mouse1 Input Debugger

Expected result: “leftButton” value changes to 0 after letting go of the button
Actual result: “leftButton” value stays 1 after letting go of the button

Reproducible with: 1.4.4, 1.5.1 (2020.3.48f1, 2021.3.24f1, 2022.2.18f1, 2023.1.0b15, 2023.2.0a13)

Reproducible on: macOS Ventura 13.2.1 (Intel)
Not reproducible on: Ubuntu 22.10, Windows 10

Note: after clicking anywhere in the build for the second time, the value behaves as expected