.map indicating wrong lines in less files

[lukaszwado]

I downloaded latest version of Koala and I have problem with LESS compiler. After compilation .map links my styles to completely different places in LESS files than it suppose to.

Topic on StacOverflow:
http://stackoverflow.com/questions/31478676/map-file-poiting-wrong-lines-after-less-css-compilation?noredirect=1#comment50924341_31478676

[lukaszwado]

Finally I realized that issue happen only if I have turn on auto prefixes.
What Koala probably does is compile less first, create .map file and then add prefixes what obviously will change the lines which should be indicated by .map.

[schwabsimon]

Same here with the Sass compiler. With autoprefix on, the source map is off and unusable.

[indextwo]

+1 this is still an issue in 2019. I was baffled as to why my source map was so wildly off with my SCSS files, but as @schwabsimon and @lukaszwado stated: with autoprefix turned on, the source map is way off. Turn autoprefix off and the source map is fine.

For reference I'm using the latest version as of June 2019: v2.3.0