DevTools failed to link network resource to filesystem.

Platform: Mac
Chrome version: 63.0.3239.132

After auto-mapping feature has been implemented there are 2 issues I experience using grunt to compile my scss:
1. Compiled css is not being refreshed every time after grunt task is done (let's say half of the times a Cmd+R is needed)
2. In another project (also compiled by grunt) when Cmd+R is called, mapping is getting lost (no green dot) and I need to restart the inspector i.o. to regain the ability of saving scss from browser (green dot is then present).