Steps to reproduce:

1. Create a new Unity project using the Universal 3D template
2. Install the Visual Effect Graph package
3. Create a new Visual Effect Graph (Assets > Create > Visual Effects > Visual Effect Graph)
4. Select "Simple Loop" Visual Effect Template
5. Open the created Visual Effect Graph
6. Click anywhere in the Visual Effect Graph window and press spacebar
7. Keep repeating step 6 but clicking in a different spot each time
8. Observe the Visual Effect Graph window

Actual results: There are multiple/many node creation windows all over the Visual Effect Graph window

Expected results: Every time the user clicks somewhere outside the node creation window, the node creation window should disappear to prevent multiple node creation windows appearing on the screen

Reproducible with versions: 6000.3.0a3

Not reproducible with versions: 6000.0.54f1, 6000.1.13f1, 6000.2.0b11, 6000.3.0a2

Tested on (OS): macOS Silicon Sequoia 15.5 (reproduces), Windows 11 (does not reproduce)

Notes:

• Even after restarting the Editor, the node creation windows remain
• This operation cannot be cancelled by left-click on the empty workspace, you must select a node to remove the node search
• You can close VFX window and the node search is gonna be visible
• Also reproducible with Shadergraph