grid offsets not working for some reason

[Alleno]

For some reason, the grid offsets aren't working for me using _skel.scss on lines 286-298. I tried to replace the lines

.\-11u#{$x} { margin-left: 91.6666666667% }
.\-10u#{$x} { margin-left: 83.3333333333% }
.\-9u#{$x} { margin-left: 75% }
.\-8u#{$x} { margin-left: 66.6666666667% }
.\-7u#{$x} { margin-left: 58.3333333333% }
.\-6u#{$x} { margin-left: 50% }
.\-5u#{$x} { margin-left: 41.6666666667% }
.\-4u#{$x} { margin-left: 33.3333333333% }
.\-3u#{$x} { margin-left: 25% }
.\-2u#{$x} { margin-left: 16.6666666667% }
.\-1u#{$x} { margin-left: 8.3333333333% }

with something more regular like

.offsetu#{$x} { margin-left: 91.6666666667% }

which did work. Has there been a change to sass preprocessing that makes this not work? If so, what would be the right work around?

[brianjenkins94]

What does your html look like?

It should look something like:

<div class="-2u 8u"></div>

[Alleno]

It looks just like that, I tried changing the order of the classes too. In the end, I solved it by replacing the - with the unicode character (with a space after, \2D