buildMarkup task issue

[mthomes]

On change of watched .hbs files the buildMarkup task reverts the vendor references as individual files in the markup. On reload the vendor.js and main.js files fail to load as the paths are now incorrect & looking for the original non concatenated versions.

I'm unsure of what task converts the vendor.js and main.js file lists into single script reference.

[mthomes]

The issue lies with running gulp launch in prod. Upon changing to dev the issue goes away.