Node's Live Edit reflect source change Only ONCE.

Hello, Im using linux ubuntu mint.

node version 8.9.3,

webstorm 2017.3

I want to use debug breakpoint & live edit's source change.

if I change source code first, it works. But second it doesn't reflect source code change and doesn't  work breakpoint as well.

Whenever i changed node's code, then '1 script reloaded' message is showing. But... not working.

What can i do?