Blocks disappeared such as glass, paintings, and fences when loaded on 1.8-pre1

Put the summary of the bug you're having here
I loaded the map on 1.8, however all paintings, glass, and fences disappeared.
*What I expected to happen was
Describe what you thought should happen here
i expected for the glass, paintings and fences to stay on the map and not disappear, like they do in 1.7.10
What actually happened was...:
Describe what happened here
The following blocks are no longer on this map when loaded, glass, fences, and paintings.

Steps to Reproduce:
1. Get this map this bug is happening on http://www.mediafire.com/download/07a4l9z8o6zajzv/MarioSunshine+1.7+.zip
2. load the map in minecraft in 1.7.10, notice glass and all blocks still there
3. Then switch to 1.8, and load the map, glass, fences, and paintings are all gone