I've struggled with this from time to time. Sometimes I can import a dxf and see the dxf layers and merge them to an Ultiboard layer. Other times it stops working. I can see no layers int the dxf even though I know they are there, have seen them in the same file previously, and can see them in other dxf editing tools.
What gives? How do I get Ultiboard to reliably import dxfs?
A test file and dxf that are not working for me right now are attached. Using MS/UB ver 14.1.