How to reproduce:
1. Create a new URP template project
2. Open Project Settings > Player > Active Input Handling and set it to "Input System Package (New)"
3. Play the Scene

Expected result: Editor plays the scene without any errors
Actual result: Editor is constantly throwing errors

Not reproducible with: 2018.4.7f1, 2019.2.2f1, 2019.3.0a5
Reproducible with: 2019.3.0a6, 2019.3.0a12, 2020.1.0a1
Could not test with: 2017.4(No Package Manager)

Reproducible with package versions: 6.5.3, 6.7.1, 6.9.1, 7.0.1

Workaround: Setting Active Input Handling to "Both"

Notes:
1. The issue only happens if Active Input Handling is set to "Input System Package (New)"
2. Can also be reproduced after removing URP/LWRP.
3. The issue seems to occur with every URP/LWRP version when 2019.3.0a6 or above is used