I was designing a livery on tsw2 and when i selected sings it put a load of unwanted sings. The train i was using was the LUL 1972 stock.
Yeh same here, i have had it on box cars and sd40, applies loads of shapes/letters/signs (whatever one your in) that you haven't selected along with your selected one. Then takes forever to delete them all
In my first run on the livery designer this happened to me as well. I could create a shape of 5 layers, after that there were always 4 random white shapes added in the middle of the train front. Together with some known missing features it was hardly possible to recreate an original livery...
It something to do with the layers, if you always select add the new shape you one at the top of the layers it doesn't do this. Then move it down to where you want it.