Node.js debugger breakpoints misaligned

Hi all,

I'm very familiar with debugging Java code, but I'm having a hard time getting started with node and WebStorm. I started my back end api application in debugging mode to in the beginning, but once I messed around with the code, switched back and fourth different branches in git, the code seems to be out of sync with the debugger. Debugger stops a few (sometimes several) lines before or after the actual breakpoint location. In IntelliJ / Java, a good old "rebuild" project would solve this. But with node application there is no such option because, well... it's node. Any clues?

I have zero experience with node. I was trying to get started on it using webstorm hoping the pain would be less given my familiarity with IntelliJ, but looks like it's causing more confusion.