Breakpoints jump to a different line

I’ve set up `react-native-typescript-transformer` using the guide described on the [website of React Native](https://facebook.github.io/react-native/blog/2018/05/07/using-typescript-with-react-native) both using an existing react-native project with version `0.55.1` and a clean project with version `0.56.0`.

In both versions, if I use this in combination with VSCode and Chrome setting a breakpoint on a line makes it jump to a different line. Could this be an issue with the generated source maps?