Hello,
are you referring to any addon you use which shows the skyshards? Please name the addon name then in your post.
But if it is related to any addon like Skyshards or Map Pins, also please read the sticky posts before you post:
Please read BEFORE asking addon questions/post bugs/if you want to remove your addon
In there it is described how to handle specific addon related questions via their comments section where others may have the same problem and already provided a fix. Also the desciption of the addons themselves often helps with troubleshooting by providing things to resolve missing icons etc.
I also remember someone esel having trouble with not shown skyshards icons and linux, so pelase use the forum search and search for "skyshard linux", maybe it helps. Have done this for you once:
https://www.esoui.com/forums/showthr...skyshard+linux