Changed to an older version of clearfix for the grid which solves the problem

Author: dariusrosendahl

sass/layout/grid.scss

@@ -24,7 +24,11 @@
 
 	/* Clearfix for older browsers without flexbox */
 	&:before, &:after { 
-		content: ""; display: table; clear: both;
+		content: " ";
+		visibility: hidden;
+		display: block;
+		height: 0;
+		clear: both;
 	}
 
 	/* Reset grid to floating */