Blackboard: Attributes or properties list isn't displayed

How to reproduce:

1. Open HUB;
2. Create 3D(HDRP) project;
3. Create a visual effect graph in the "Project" window  (Create->Visual Effects-> Visual Effect Graph);
4. Select "Minimal System" in "Create New VFX Asset" and click "Create";
5. Double-click on the graph to open it;
6. Go to the Blackboard and select the Properties or Attributes tab;
7. Click "+";
8. Enter "AAA" in the search field, presented in the menu;
9. Delete all three entered symbols;
10. Move the mouse to the "Attribute" menu or "Properties" menu displayed below the search;
11. Observe the result.

Actual Result: Sub-menu list isn't displayed. Video added in the attachments section.

Expected Result: Sub-menu always should be displayed.

Reproducible with: 2023.3.0a7, 2023.3.0a9.

Not Reproducible with: 2022.3.10f1, 2023.1.16f1, 2023.2.0b13, 2023.3.0a6. As all, they do not have search functionality.