DevTools failed to link network resource to filesystem.

Platform: Windows 10 64bit
Chrome version: 63.0.3239.132 (64bit)

What are the details of your project?
- Source code (if any): http://localhost:7073/...
- Build System: maven
- HTTP server: tomcat

Assets failed to link (or incorrectly linked):
1. 
at first, mapped to maven build target instead src.
so, after I add '/target/' to Folder Exclude Pattern,
mapped to src.

2.
My project have linked source, (Symbolic link using 'mklink /J ...' command)
but it's not mapped ...

3.
I developed javascript logger, and it's source link have worked fine at previous version.
But now it doesn't work...
for example, in my logger library write console.log('http://localhost:7073/aaa/bbb.js') and click the line, it shows network source in new tab.
(in some previous version, it open mapped source in dev tools)