Steps to reproduce:

1. Create a new Unity project using the Universal 3D template
2. Install the Visual Effect Graph package (com.unity.visualeffectgraph)
3. Create a new Visual Effect GameObject (GameObject > Visual Effects > Visual Effect)
4. Create a new Visual Effect Graph by clicking the "New" button under the Visual Effect component in the Inspector window
5. Select "Simple Loop" and click the "Create" button
6. Change the "Asset Template" in the Visual Effect component to "None"
7. Observe the Attach button in the Visual Effect Graph window

Actual results: The Attach button in the toolbar is colored as if it is active and the tooltip says "Attached to Visual Effect" instead of "Select a Game Object running this VFX to attach it"

Expected results: The Attach button in the toolbar is no longer active and the tooltip is "Select a Game Object running this VFX to attach it"

Reproducible with versions: 6000.0.54f1, 6000.1.16f1, 6000.2.0f1, 6000.3.0a4

Tested on (OS): macOS Silicon Sequoia 15.5

Notes:

• If the GameObject is deleted, works as intended and shows as detached