XF 1.5 Weird bug with symbols

[Chrispalm04]

I am having an issue with my XenForo website where all my symbols are just plain squares. Not sure how to fix this and it's very confusing.
https://image.prntscr.com/image/II8aVcDaT2_KtoIFV_jCbA.png

 

[Paul B]

I note you are using a third party style.

You will need to contact the author as it could be related to missing icons, a sprite, something to do with fontawesome, or something else.

As we're not familiar with third party styles, we wouldn't be able to confirm what's causing it.

 

[Chrispalm04]

I am using the UI.X theme, but no third party irons.

 

[Optic]

UI.X replaces the XenForo editor image buttons completely with a font called FontAwesome, you really need to lodge a ticket on @ThemeHouse 's website ..