Having texture model issues? Read on...

[Dishconnected]

From reddit/Archeage forums:

[–]Charon2khttp://forums.archeagegame.com/cas_logi ... own-Issues[1]

ArcheAge caches compiled shaders in order to run faster – the first time you play, you may notice it takes a little time for some geometry to be textured. Occasionally, this cache can become corrupted. The most common signs of this are objects, characters, or even just parts of characters rendering completely black. If this is the case, you need to exit ArcheAge, delete your cache, and then start playing again. The cache is located at \Documents\ArcheAge\USER\shaders. Within this is a folder, is a folder named “cache”. Delete it (and the files contained within.)

That should fix your issue... that or as others say drop down to DX9. Unless you are using the Bokah Effects of the screenshot function, DX11 isn't needed too much.