Dwg export problem hidden lines

Hello everybody
In sketchup pro 15, I have to export a model in .dwg without showing the hidden lines. That usually works well.

In one of my model, I have 3 layers that cause problems: when I hide these 3 layers, the export works well as wished (without hidden lines)
Then I export the whole model with These 3 layers that cause Problem, the Export Shows every lines, also the hidden-ones.

I tried to copy to new layers, change styles, clean up the model… nothing. I tried to copy the components in new layers, rename the layers… nothing works, always the same problem. To solve this problem, I have to replace the components in the layers with a very simple component, like a cube!?!

Now the best: one of the layer that cause problem can be exported with expected results (without hidden lines) when every other layers are hidden!

Is there a Limitation in the quantity of edges that can be exported to .dwg and taking in charge the hidden lines?

Thanks for you help.

Best regards

Samuel

Hi,

Do you finally find a solution ? I have the same problem with my MAC OS…

Thanks,
Regards,
Florence