Black textures on EC USA, JRI

So, I was screwing around in the map editor with Grid, Small, Pure today, and after I was done with that, I loaded up East Coast USA and opened the editor, and I began seeing some black textures. I exited the editor, and I see this:

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After rebooting the game:

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This is also happening on a few other maps, such as Jungle Rock Island:

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I haven't...

Black textures on EC USA, JRI