DevTools failed to link network resource to filesystem.

Platform: Win
Chrome version: Canary 63

Assets failed to link (or incorrectly linked):
1. file:///C:/Users/asafm/Web Development/Projects/musicians-market/wp-content/plugins/theme-customisations-master/custom/style.css
2. http://fd3.1a0.myftpupload.com/wp-content/plugins/theme-customisations-master/custom/style.css
If possible, please attach a screenshot of network sources navigator which should
show which resources failed to map