AVIF Conversion Error "Not a Picture" | XnConvert Mac

[christb]

One addition for XnView 1.9.2 Mac Sonoma:

The export dialog doesn't even show AVIF as tab, although selected in the settings Formats menu.
Other selected formats show up correctly.

Screenshot 2025-06-29 at 16.51.58.png (8.28 KiB) Viewed 703 times

Screenshot 2025-06-29 at 16.49.54.png (55.9 KiB) Viewed 703 times

[xnview]

just had the chance to test XnView MP 1.9.2 (now I can see the convert dialog). But unfortunately, both Export and Batch Converting to AVIF lead to the same exact issue. My system is still as described in my post (MacBook Pro 16", 2019, Intel, MacOS Sonoma, now 14.7.5)

i've tried on MacOS 15 and it works

[christb]

Noted, I will try again once upgraded to MacOS 15/26

[gosling3946]

I'm having the same problem on macos 14.
Any progress?