These files have worked in the past but now Im getting a variety of errors either on submission or after processing when I go to download. Based on this and some of the other error posts from other people I have a feeling its a server side issue, can you confirm.
our settings are
convert to geojson
format WGS84
files are all KML
and here are the files - Dropbox - WOTC-kml.zip - Simplify your life