I am seeing "Place Holder" instead of icon picture for all mods I've tested so far.
I realize FAF has Black Ops Icon support built in - but I've tried having that mod in the mods folder and NOT having it.
This test appears to have no effect.
I have also tested NOT enabling any mods, and then, one by one, trying to enable each "adds units" mod by itself, and I still see "Place holder"
The actual new units or buildings do get built, and their graphics appear to be fine.
Note: all mods are in the "...Documents\My Games\Gas Powered Games\Supreme Commander Forged Alliance\Mods" folder.
Any suggestions?