XYplorer Beta Club

The icon file in the attached zip can be viewed in the preview pane but not in the floating preview ("No preview available").

Even in the preview pane XY does not report on the image size, so perhaps the file is not in the correct ico format, but I'm surprised that the two preview methods return different results.

(I downloaded the icon from https://www.moneysavingexpert.com/favicon.ico.)

This is a PNG posing as an icon.

I suspected the answer would be something like that. Can the floating preview be 'forgiving' in the same way as the preview pane and display the PNG?

In theory sure. But no time ATM.