Widget code now breaking Magento's JS!

Widget code now breaking Magento's JS!

Has the Sales IQ code had some updates in the past 48hrs?

I've had to disable on our Magento 2 store as it's messing with Magento's own JS effectively killing the site.
We've had it the widget code working fine for ages, what's changed?

The error fired in the console is:

Uncaught Error: Mismatched anonymous define() module

This only happens if the widget code is added to the page

Any ideas??