How to reproduce:
1. Open the attached “IN-124874.zip” project
2. Open the “SampleScene” scene
3. Enter Play Mode
4. Press and hold the left mouse button
5. Press and hold the right mouse button
6. Observe the Game View
Expected result: RMB and LMB both get logged as 1
Actual result: Only LMB gets logged as 1
Reproducible with: 1.15.0 (6000.3.0a5 (f9a1fab5607a)), 1.17.0 (6000.0.62f1, 6000.2.13f1, 6000.3.0a5 (f9a1fab5607a), 6000.3.0f1, 6000.4.0a5, 6000.5.0a1)
Not reproducible with: 1.15.0 (6000.3.0a4), 1.17.0 (6000.3.0a4)
Reproducible on: Windows 11 Pro (24H2)
Not reproducible on: No other environments tested
Note: Only reproduces when not moving mouse