Stuttering audio roughly 10% of game launches

Hi all!

We're getting ready to submit the rift version of our quest game because some users have been asking for it. All appears ok except for one issue... 
Sometimes when the game is opened, the audio across the whole game stutters. Moving between scenes doesn't help at all. The only thing that works is quitting the game and opening again. It happens roughly 10% of the time the game is opened. Has anyone else experienced this issue? Our game is pretty well optimized due to the quest version so I'm assuming it's possibly related to some build settings. 

Any help would be greatly appreciated!

Matt