Icons not displayed correctly

Hi all.

I have upgraded my IceWM Installation to 1.3.7-1 (Debian package 
version) and noticed that some icons of applications like nautilus or 
gnome-terminal are not displayed correctly anymore (unknown application 
icon is shown, instead). They have been displayed correctly in the 
previous version (which was 1.3.7~pre2-1+b1).

I have also re-checked if it's an IceWM problem by using another panel 
(in this case tint2), where the icons are shown correctly.

Any idea?

Greets
Marcus

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