Steps to reproduce:
1. Create new Unity project using Universal 3D Template
2. Open package manager window and install Entities package
3. Go to Edit > Preferences > Entities
4. Change Type Of Worlds Shown from “Live” to “None”
5. Observe the Console window

Actual results: “Ignoring invalid [Unity.Entities.UpdateAfterAttribute] attribute on Unity.Entities.Editor.ExplicitFilterSystem targeting Unity.Entities.Editor.UpdateHierarchySystem.” warning is thrown in the Console window

Expected results: No warnings are thrown in the Console window

Reproducible with versions: 6000.6.0b1 (bec83302551e), 6000.6.0b3, 6000.7.0a2

Not reproducible with versions: 6000.5.3f1, 6000.6.0a7 (240d06e2411b)

Tested on (OS): macOS Tahoe 26.5.1 (M1)

Ignoring invalid [Unity.Entities.UpdateAfterAttribute] attribute on Unity.Entities.Editor.ExplicitFilterSystem targeting Unity.Entities.Editor.UpdateHierarchySystem.
This attribute can only order systems that are members of the same ComponentSystemGroup instance.
Make sure that both systems are in the same system group with [UpdateInGroup(typeof(Unity.Entities.SimulationSystemGroup))],
or by manually adding both systems to the same group's update list.
UnityEngine.Debug:LogWarning (object)
Unity.Debug:LogWarning (object) (at ./Library/PackageCache/com.unity.entities@501bc1f6f166/Unity.Entities/Stubs/Unity/Debug.cs:13)
Unity.Entities.ComponentSystemSorter:WarnAboutAnySystemAttributeBadness (int,Unity.Entities.ComponentSystemGroup) (at ./Library/PackageCache/com.unity.entities@501bc1f6f166/Unity.Entities/ComponentSystemSorter.cs:477)