Shield Throw bug in The Labs Below

Just started playing on the Xbox as a warrior and have been able to destroy most of the Blight Boils with my axe; until one spawned on the ceiling. 

For whatever reason, I am unable to use the right trigger to perform a shield throw in this zone and the Blight Boils cannot be targeted by companion abilities.

Could this be a bug for either the Shield Throw or my save file? Going to attempt to replay on another file but this just feels bad/frustrating.