Reproduction steps:
1. Create a new Universal 2D project
2. Create any Tilemap (Window > 2D > Tile Palette > Create New Tilemap)
3. Duplicate the Tilemap GameObject in the Hierarchy until a scrollbar appears in the Tilemap dropdown
4. Enter any text in the Tilemap dropdown search bar to produce some or no results
5. Observe the Tilemap dropdown
Actual result: Scrollbar remains visible in the dropdown, covers the “X” button in the search field and dropdown displays large empty space below the search results
Expected result: Scrollbar updates based on the filtered results and does not overlap the “X” button in the search field
Reproducible with: 6000.6.0a6
Couldn’t reproduce with: 6000.0.76f1, 6000.3.16f1, 6000.4.9f1, 6000.5.0b10, 6000.6.0a5 (No search bar in the Tilemap dropdown)
Reproduced on: Windows 11, macOS Tahoe 26.4 (M4)