Cannot read property 'join' of undefined

[kostimarko]

ember-cli:~3.11.0

I placed the json file in the correct location in public/animations/loading.json but I keep getting a

Uncaught TypeError: Cannot read property 'join' of undefined
    at Object.buildBezierData (bodymovin.min.js:1)
    at n.t [as interpolateValue] (bodymovin.min.js:2)
    at n.e [as getValue] (bodymovin.min.js:2)
    at Object.m [as getValue] (bodymovin.min.js:2)
    at ICompElement.BaseElement.prepareFrame (bodymovin.min.js:4)
    at ICompElement.prepareFrame (bodymovin.min.js:5)
    at ICompElement.prepareFrame (bodymovin.min.js:5)
    at SVGRenderer.renderFrame (bodymovin.min.js:4)
    at AnimationItem.renderFrame (bodymovin.min.js:5)
    at AnimationItem.gotoFrame (bodymovin.min.js:5)

any thoughts?