XF 1.5 All but two Smilies not showing in editor

Movie Prop Sites

Active member
Having an odd issue and not sure when it started. We have 5 sites that are configured nearly identically and only one is having this problem.

In the text editor, all but two smilies are invisible. They seem to be there, you can drag over them and see the square they occupy. You can even click the blank space and something is added to the post, but nothing visible. The spite image is intact. All the smilies have Show this smilie in the text editor enabled, but for some reason, most of them aren't showing. The two that are showing are individual PNGs while all the ones not showing are part of the sprite.

upload_2019-3-4_10-39-39.webp
 
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