Intresect with model making problems

[bagtoshop]

hi im trying to seperate the grass surface under the house to 2 pieces. but when i tried to do intersect with model the sketchup is stuck !
look at the arrow i made in the photo. there is somthing to do with the 27 entities ? and if yes what is the way to make it lower ?
please help.

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[boofredlay]

Can you attach the file?

[bagtoshop]

@boofredlay said:

Can you attach the file?

thanks

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גבול מגרש זמארין.skp

[slbaumgartner]

Please see your other post on the same subject.