http://puu.sh/wzH6n/fa26ee594a.png

Big mod list - not sure why this is failing. Removing shinybob fixed it though.

That is odd as hell. I just double checked, that graphic is not referenced ever in this mod. I got that bug a while back with (I think) some of the alien artifact options for Bob's Enemies. You can mess with them in the options in-game or in mod-settings.json in your mod directory.

I simply copied that graphic into the appropriate directory from a 0.14 version of the game so I never actually tracked down the specific cause. Let me know what you find, but I'm pretty sure it's not me wanting that graphic.

You got me curious so I went hunting through my mods. Any chance you have research queue? If that is the case then it's the culprit.

In research queue:
/prototypes/gui.lua Lines 258, 267 and 276 all reference:

"base/graphics/icons/alien-artifact.png"

Change to "bobenemies/graphics/icons/alien-artifact.png"

and you should be good. Or copy the file from there to the base game. Either works.

I do have research queue, thank you!