Reproduction steps:

1. Open the attached project “ReproProject“
2. Go to Window → Multiplayer → Multiplayer Play Mode
3. In the opened window, enable any of the virtual players (for example Player 2), wait till the loading is complete
4. Observe the result in the opened Project Settings/Project Validation menu

Expected result: No errors are present in the Project Validation menu
Actual result: Errors are present regarding the missing XR Hands and UGUI packages

Reproducible in: 1.3.0-pre.3 (6000.0.22f1), 1.4.0-pre.3 (6000.0.50f1)
Not reproducible in: 1.3.0-pre.2 (6000.0.22f1), 1.4.0-pre.3 (6000.1.4f1, 6000.2.0b3), 1.5.0 (6000.0.50f1, 6000.1.4f1, 6000.2.0b3)
Could not test with: 2022.3.63f1 (Multiplayer Play Mode package is not supported in 2022.3 stream)
Fixed in: 1.4.0 (6000.0.50f1)

Reproducible on: Windows 11
Not reproducible on: No other environments tested