Icon image is broken only when viewing app on mobile phone

[FranklinAlexander]

The svg images for the widget icons sometimes won't show up after the app is exported to and deployed on a local server. I am having an issue with one icon in particular, the default Query widget icon will sometimes not load on both desktop and mobile layout once the app is deployed. 

Screenshot of icons in the EXB GUI in mobile layout:

Screenshot taken from mobile phone:

Would like to know if any one else has had the same issue, is this a possible bug, and is there a quick fix?

[FranklinAlexander · Accepted solution]

After checking the config.json file, I found the issue. I found 2 instances where the query widget icon svg had a localhost address. Not sure why that happened, but I copied and pasted the correct paths from the console to the config and all is good.