“SGICE003” is thrown to the Console when including "UnityEngine" in a script

How to reproduce:
1. Open the “SurvivorLike“ project
2. Observe the Console

Expected result: No “SGICE003” error is thrown
Actual result: The “SGICE003” error is thrown

Reproduced with: 1.0.16 (2022.3.25f1, 6000.0.0b15), 1.2.0 (2022.3.25f1, 6000.0.0b15)

Reproduced on: Windows 10 (by reporter), Windows 11
Not reproduced on: No other environment tested

Notes:
1. Not reproducible in a new project
2. Not reproducible when “using UnityEngine;“ is removed from the “Assets/Scripts/Bakers/EnemySpawnerAuthoring.cs” script