Steps to reproduce:

• Create a 3D project with default settings
• Import the attached 3D assets into the project
• Select both models in Assets view
• Right click and select Delete files
• -> There is "CMakeLists.txt Failed to write" error seen in Issues view. It opens a File error dialog:
  

Tested with
Product: Qt Design Studio 4.8 (4.8.0)
Based on: Qt 6.9.2 (MSVC 2022, x86_64)
Built on: Sep 18 2025 01:26:40
From revision: fc864032e3