XnView Software

XnView: Version 0.99.6 64bits (Dec 10 2021)
OS: Windows 10 - 64-bit

Effect: AVIF thumbnails does not view, full screen is black

XnView continues navigating in fullscreen using "Page down" key, avif files black

To reproduce:
1. Browse a folder that contains avif image files and other formats
2. Select first image file.
3. Open fullscreen (view) using F11 key.
4. Press "Page down" to navigate to the next image
5. AVIF files black

Actual behaviour (bug): XnView does not display avif files, all others displayed

Expected behaviour: all image files displayed.

Update: reinstalled older version... Version 0.98.4 64bits (May 28 2021) ... and all works. AVIF thumbnails and full screen works as expected to work.

no problem here, could you send me a sample file?