SR Map isn't showing properly...?

We’ve run SR for a small suburban network and although SR are showing in the related table reports, the SR map looks very wrong. If we select the raw data, we can see that the sections are more or less aligned, but when we select smoothed data, the map doesn’t show anything i.e. a completely blank Google Map. We will double check the coordinate data again, but any ideas what we could be doing wrong?

Without seeing the data (upload) file its a bit tricky to say exactly what the problem might be, but if its a mapping issue then I’d be double-checking road name, road section, distance, and lats/longs in the first instance.