Icons cause cert signing to fail

I hope someone can help with this. I have an Air application for windows desktop. After publishing the exe I am using an advanced cert signing tool (because of the security of the cert no .p12 or other export options are available.). When I publish the app from flash CC on windows 8 without icons, my cert signing works great. If I add icons then the cert fails stating "the file C:\Users\... could not be signed (0x800700c1)." I have tried re-saving the icons with different setting but nothing seems to work. It does however work if I publish it from flash cs6 on windows 7 with icons. Anyone know of to resolve this?