Backstopjs hangs after 'reference' command

Once in a while, I experience a bug where backstopjs hangs in the terminal after the "reference" command is executed, without having the option to run further commands.

This wasn't a problem when I used to run tests manually, but now that I run backstopjs in a Jenkins job, it's dangerous since the job just builds forever since it doesn't receive any error.


As you can see in the screenshot the command executed successfully and then hang there for a few hours until my manual abortion of the build.