Audio tags inside Ember each loop

In an Ember application (Ember v3.13) I tried to iterate through an array of audio URLs, using an each loop in a template, and generate an audio tag for each...

I get the following error:

Assertion Failed: fullName must be a proper full name  

The audio tag works fine outside of the each loop.

Wondering if anybody has seen this before or know what it means or if there’s a workaround?