To reproduce:
- 1. Collect some large images in a test folder. By large, I mean VERY large (200Mb each, for instance).
2. Use the MP browser to navigate to the folder.
3. Now, resize the thumbs to a very large size using the slider in the browser.
4. Observe the status bar as...
5. ...XnView recreates the thumbs, but at the stored (default) size (the thumbs remain blurry).
Of course the thumbnails remain blurry, but there is no reason to rebuild them at the lower resolution. They are already in the database.