V1.0 (19) - black preview thumbnails for jpeg xl files in gallery view and on folders

[masterjp]

I did a jpeg xl conversion with Xnview mobile. It works fine.
In gallery view I see the filename of the jpeg xl file, but the thumbnail is black.
I can open the jpeg xl file in Xnview mobile and see it correctly in fullscreen view.

If the jpeg xl file is the only file in the folder, the album view does not show the thumbnail on the folder.

I tested the same situation in folder view and everything works perfect!