Steps to reproduce:
1. Create a new Unity project using Universal 2D Template
2. In Project window create Auto Tile Asset (Create > 2D > Tiles > Auto Tile)
3. In Inspector window > Used Textures list add a Texture by pressing “+”
4. Below the list press “Load” button
5. When “Load AutoTile template” window is thrown - Cancel it
6. Observe Console window 

Actual results: Warning “ does not contain a valid AutoTileTemplate.” is thrown in the Console
Expected results: No warnings are thrown when user cancels Auto Tile Template or clear, actionable message should be provided

Reproducible with versions: 6000.3.5f1, 6000.4.0b5, 6000.5.0a5
Can’t test with versions: 6000.0.66f1 (No Auto Tile)

Tested on (OS): macOS Silicon Tahoe 26.2 (M1), Windows 11