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. Press the + button in the blackboard
7. Select Attribute > Float
8. Enter a very long name and press enter
9. Observe the Editor

Actual results: Editor hangs and becomes unresponsive indefinitely

Expected results: The attribute is created or a warning/error appears that the attribute name has too many characters

Reproducible with versions: 6000.0.54f1, 6000.1.13f1, 6000.2.0b11, 6000.3.0a3

Tested on (OS): Windows 11, macOS Silicon Sequoia 15.5

Notes:

• On Windows 11, the Editor sometimes doesn't hang but starts loading/recompiling upon every mouse click or even the mouse moving, becomes extremely slow
• On Windows 11, sometimes after step 8, have to click the arrow button next to the name to expand the Attribute, that results in 100% reproduction in either Editor hanging or getting into a recompile/loading loop
• On Mac, the Editor always hangs and becomes unresponsive needing to Force Quit which results in data loss