To reproduce:
1. Open the attached project
2. Load the "test" scene
3. Hit play
4. Open Profiler window
5. In the Profiler window, select "Memory"
6. Change mode from "Simple" to "Detailed"
7. Click "Take Sample: Editor"
8. Expand "Scene Memory" -> "Texture2D"

Actual result: the texture is using 32 MB of memory. Double clicking it will select the game object and the preview window shows 16 MB (see screenshot)
Expected result: Numbers in the Profiler and the Preview window should be the same