I cut this
But it cuts all the line, not only the polygon
or like this
maybe anyone get an error like me?
It seem that you might have some vertices that are not welded, can you check out and see if the vertices are connected? just select one and move it from the face of the text, if you see some holes between the front faces and the side ones it means that you will need to select all the vertices go to Edit Mesh > Merge
Hope this helps
Even if you're on the right track, you'll get run over if you just sit there.
i merge all this vertex
but still no work
i try to:
delete History ( Delete By Type > History )
Maya can have trouble with nGons. These are polygons with more than 4 vertices. Try and triangulating the front face of your letters. You can also use the split-polygon tool to control where your triangle edges will be placed. Set the snapping tolerance high so you dont inadvertently create even more vertices.
This not only happens with the cut faces tool, but also with a lot of other tools when used on nGons.
I think Grand Moff Tarkin said it best, when he said: "Evacuate? In our moment of triumph? I think you overestimate their chances."