I am trying to create a corridor with surfaces for gravel and asphalt. the asphalt worked just fine but when I go to tie the gravel in with the finished grade using the side slope command, It will not let me do a negative side slope to tie in. I've tried to enter in positive 2 and negative 2 and neither has worked. At first, I thought this may be a bug in my computer, but we have tried using a couple of computers and no luck. As of right now the closest I can get to a -2 slope is a 0-degree slope. anyone having the same issue?