Editor hangs wehen importing zwoptex' new coordinates file

[artifacts]

2011-01-28 10:19:41.192 LevelEditor[53439:a0f] Cannot lock focus on image <NSImage 0x116956300 Size={0, 0} Reps=(
)>, because it is size zero.

old:

    <key>1p.png</key>
    <dict>
        <key>x</key>
        <real>8</real>
        <key>y</key>
        <real>75</real>
        <key>width</key>
        <real>64</real>
        <key>height</key>
        <real>54</real>
        <key>offsetX</key>
        <real>0</real>
        <key>offsetY</key>
        <real>-0</real>
        <key>originalWidth</key>
        <real>64</real>
        <key>originalHeight</key>
        <real>54</real>
    </dict>

new:

    <key>1p.png</key>
    <dict>
        <key>aliases</key>
        <array/>
        <key>spriteColorRect</key>
        <string>{{0, 0}, {64, 54}}</string>
        <key>spriteOffset</key>
        <string>{0, -0}</string>
        <key>spriteSize</key>
        <string>{64, 54}</string>
        <key>spriteSourceSize</key>
        <string>{64, 54}</string>
        <key>spriteTrimmed</key>
        <true/>
        <key>textureRect</key>
        <string>{{8, 75}, {64, 54}}</string>
        <key>textureRotated</key>
        <false/>
    </dict>

Select Zwoptex Flash Format when saving the coordinates file, that will work.