@tak2hata said:

Hi,meoa.
I need more information for your problem.
I can not know what happened, too.

Please upload your model and the picture of the fur setting and selected face.

Thanks.

Sorry tak2hata, it was my mistake.

I deleted geometry in a component and for some reason it did not rescale or i may have moved the axes by mistake so the component size was far larger than the content(space when you edit the component). Thus, the make fur moved the components further away than the size of the content which explains why they were off the face.

make fur on the rectangle's surface using the component beside it

make fur on the rectangle's surface using the component beside it

Preview shows fur on the selected face but after clicking make fur, quite a number of it go off the selected face. The ones on the face are also scattered unevenly unlike the preview.

Is this what should happen or am i doing something wrong ?

Ok, sketchup just crashed. I tried it again and it seems to be fine now. Fur stays on the faces. I stil don't know what happened before and the cause.