How to reproduce:
1. Open the example scene in the attached "InputSystem_Warriors_Project.zip" project
2. Enter PlayMode
3. Edit any script and save it (wait for script recompilation)
4. Select GameObject “UI_Canvas_World_PlayerDisplay”
5. Continuously click on Object “Text_DeviceName (TextMeshProUGUI)” in the inspector

Expected Behavior: The editor stays in the same state without breaking
Actual Behavior: The editor starts flickering with every click, you can see UI text being separated

Reproducible with: 2019.4.20f1, 2020.2.1f1
Could not test with: 2018.4.31f1, 2021.1.0b5, 2021.2.0a4 due to project dependencies being broken

Note:
- Video attached "Screen Recording 2021-02-04 at 09.17.18.mov"
- The issue seems to be hardware/OS-specific since I was not able to reproduce it on windows