Comment 2 for bug 551479

Thank you for helping with making Ubuntu and Nautilus Actions better by reporting this bug. I can confirm this issue myself, although not for all icons. All manually set icons do seem to be affected.
I've reported this issue upstream and because that finishes the work of the Bug Squad here I'm setting the status to Triaged.

Please notice that (most) menu items are not supposed to have icons anymore, so it could be that they are not shown in the conext menus simply because no icons should be shown in menus.