XnView Software

I just installed XnView and on looking through my files, I find that there are no thumbnails for aphoto files, just an image of the Affinity Photo Icon. Am I missing some setting? I absolutely need this. This must work as this software was recommended on Affinity site.

Same here on Mac. No way of seeing the Affinity thumbnail.

It seems you need to go to:
Settings-General and check "Show all graphic formats"

It worked for me.