The entity solution pack, when using islandora solr metadata display does not recognize the description field:
When selecting solr fields for display within an entity collection, the button option:
The field used for rendering the description beneath the object's content
is not including on the entity display. The assumption being that changing this value would affect the biography heading on an entity collection display. 99.9% positive this has to do with the entity solution pack display, and not islandora solr metadata.
Simple fix: Include text saying this field is not supported with the entity collection