Assassinate Bug that renders you Invisible

So, I did the FATE at 15, 18 with the Antelopes in South Shroud (Antelope Parting).

As the FATE ended, the Antelopes ran away. I chased after because 1 was very low on HP and I decided to try to Assassinate it to get a wee bit more EXP.

As I did Assassinate, the Antelope faded away, and as I did Assassinate, it turned me Invisible, and locked my model in mid-air, tilted, at 15, 19, as GM Zuhyramm can attest to with this image taken by me and given to GM Zuhyramm:

http://oi58.tinypic.com/29gkh1f.jpg
Click for bigger image.

Furthermore, the sound vanished and I was unable to hear my footsteps. I could however hear the skills going off, and other players. - Tried to recreate the bug (time: 06:09 a.m. 30 minutes before this post was posted) but was unsuccessful in doing so as I failed to do Assassinate in time.

Other players could see me. When I zoomed in on myself, it seemed to tell me that I was underground, which was odd, since I was floating in the air (what I saw), or standing normally on the ground (what others saw). If I tried to target myself, I was directed to where my model was, and when I moved, the model moved and so on.

Thanks to GM Zuhyramm who showed patience.

I managed to recreate it again by doing the same thing. This is what the client sees.

Click the pictures for a bigger size.

http://oi59.tinypic.com/r2vmab.jpg

Below you can see where my model is (floating in mid-air on the left-hand side), and where "I" am (the blue HP bar). The Kedtrap, when attacking, is doing its attacks where the model is, which is stuck in mid-air.

http://oi59.tinypic.com/16horap.jpg