Sprite Atlas remains loaded in memory after scene change or unloading assets

Sprite Atlas remains loaded in memory after scene change or unloading assets

Repro steps:

• In attached project, open SampleScene and enter Playmode, use Frame Debugger to observe sprites in scene referencing atlas textures
• Using Memory profiler capture, observe atlas Texture2D reference in memory
• Press 'Space' to open empty scene, press '1' to unload all unused assets or '2' to unload all atlases
• Using Memory profiler capture, observe atlas Texture2D reference is still in memory

Expected results: Sprite atlas and atlased textures should not be in memory after switching scene or being unloaded

Actual results: Sprite atlas and atlased textures remain in memory after switching scene or being unloaded

Test platforms: Windows 11