Here is the pattern file;<a target="_blank" rel="noopener noreferrer nofollow" href="https://www.dropbox.com/scl/fi/gtavusi5o4lxxklzv45i5/Pattern.dxf?rlkey=rxce8ptm7zfs02hzl3p02un89&amp;st=axwdity3&amp;dl=0">https://www.dropbox.com/scl/fi/gtavusi5o4lxxklzv45i5/Pattern.dxf?rlkey=rxce8ptm7zfs02hzl3p02un89&amp;st=axwdity3&amp;dl=0</a>Back pattern appears on the 3d Screen however front pattern does not.What's wrong?How can I make It appear on the 3D Screen?