Hi everyone! So I'm trying to import my roughness shapefile into Map Editor and it always gives a message that there are lines with missing or invalid values. I originally was using my roughness file in polygon but because of left and right values I converted it to polylines. At first instant, I thought that the problem had to do with the values being in meters and consequently in decimal cases, so I convert them to centimeters but the problem continues. The thing is, I actually have the same problem with the altimetry one, it shows the exact message. I checked both shapefiles and I'm sure that every line has its value. I'm new to the WAsP software so I can't really know/tell what I'm doing wrong despite having read and searching a lot about its features. If you could give me some enlightenment it would be great. Thanks in advance for your help.