Tested with QDS 4.8 Built on Jun 3 2025 01:24:22

1. Create 3D project
2. Add a custom folder with images to User Assets
--> folder does not show any images
3. Add an image to Assets -view
4. Drag and drop image to custom folder
--> image will show in the folder. If the image drag-and-dropped to the custom folder is the same image as was already in the folder, QDS will notify user that texture already exists

Note: HDR images are seen normally in the folder, so this issue seems to affect other image formats.