We're having issues on the 30XX Wiki where a specific gif's thumbnail isn't loading.
https://30xx.miraheze.org/wiki/Bosses
Visible in the final section on this page, you'll notice that the Echocave Miniboss and Lethal Tempo's images aren't loading at all, despite other images on the page loading just fine. (Save for Big Snek, Dustria Miniboss and Beeg Frog, we haven't gotten around to making images for those yet, that's on us)
I'm not sure what's going on though, as File:Echocave_Miniboss.gif and File:Lethal_Tempo.gif exists and they are in the exact same format as all the other gifs. It seems to be just the thumbnail that isn't working.
https://30xx.miraheze.org/wiki/File:Lethal_Tempo.gif
https://30xx.miraheze.org/wiki/File:Echocave_Miniboss.gif
https://30xx.miraheze.org/wiki/File:Capital_Punishment.gif (To use as a comparison)