Weird Pocketsphinx Accuracy Degredation

A little bit of context - I'm creating a pocketsphinx application for android, using jsgf grammars (though the problem persists with fsg grammars as well). My code is based on the

Solution 1:

Problem solved, turns out I needed the -dither option to account for 'zero energy regions' Thanks to Nikolay Shmyrev for the solution https://sourceforge.net/projects/cmusphinx/forums/forum/5471/topic/5507338