more or less limitations of the graphics engine. It feeds all the /Mobs/PC's/NPC's in the area. Sometimes there's too many to draw and it starts clipping them. Have to back off so they are out of draw distance then come back in.

Part of this is due to too many people clustered at the maws and such, or (in the case of chests in abyssea) too many chests popping at once.

Until they are able to to a rework the game to be more DirectX compliant, probly won't see a fix for it anytime soon (probly won't happen as long as the PS2 is still supported).

Raist