When joining a server after recently opening the game everything is fine. After leaving the server and then rejoining, visually only, unreal chunks form a repeating "grid" pattern on several 'y' rows across 'x' and 'z' planes. This is only visible by me, and does not affect other players. Everything seen is only visual and does not really exist. After closing the game, opening the game, and entering the server, everything is normal.

Replicating the error:
1)Open minecraft
2)Join server
3)Leave server
4)Rejoin server
and then the issue is seen.

Fixing:
1)Close the game completely
2)Reopen game
3)Join server
issue is gone.

Nothing that is part of the swapping chunks is real. It does not affect other entities. Random mobs never seen before, (must be the ones added to 1.9) are sometimes visible in strange ways, through they are not really there. Sometimes only flapping wings (or something like it) is seen. Does not seem to happen on single player worlds. Does not happen to other players (windows 7). This error might not be particular to Windows 8, as previously the issue was not occurring. See attached screenshots.