Icons showing up as question marks on phone but shows up correctly on principle app

Hi,

For some reason im not able to see the icons when i view the proto on iphone. it just shows as questionmarks. what can i do? thanks!

Here is the file: https://www.dropbox.com/s/2tg2058fh7d07wk/Feed%20Wires%20copy.prd?dl=0

i figured it out :slight_smile: the icons needed to be a different format