update: just turned on hidden geometry and found few hidden files far away from the main model.deleted them and now the clipping problem is gone. thanks for the suggestions and help brother

checked all the suggested points. everything is right. still same issue

check the sample file attached

I'm having a very strange problem with viewing my model on sketchup 2017 latest version. whenever im coming close to the model it starts showing the internal side of the model.Im not able to figure out what's causing this error.