Using ArcGIS 4.0 with Ionic

Hi, regarding ionic + angular-esri-map, I followed the way it was documented here for the feature layer:

Vector tile works in ionic using the same method documented in the vector tile example, but when using feature layer, the map renders but the map is distorted.

Here is how the vector looks in ionic:

Here is how the feature looks (Broken) :

Note that this is without the Esri ArcGis 4.0 CSS.

If i do add the esri arcgis 4.0 css:

It causes the map to disappear on both feature and vector. This makes me think that perhaps there is some css conflict between the ionic framework css and the ArcGIS css.

Anyone have any idea?