Oh, I see what is probably causing the issue. The icons in /usr/share/icons are installed to a wrong path. They should be installed in /usr/share/icons/ hicolor/*x*/apps/, not /usr/share/icons/cqrlog/*x*/.
- Bug#841369: Change icon image for CQRLOG Colin Tuckley
- Bug#841369: Change icon image for CQRLOG asciiwolf
- Bug#841369: Change icon image for CQRLOG Colin Tuckley
- Bug#841369: Change icon image for CQRLOG asciiwolf