Audio drop offs

[koover]

This is a new one on me. Every 3D Blu-ray I play, the audio drops off every few seconds consistently. It’s unwatchable. The thing is, it doesn’t happen on ANY standard Blu-rays or my 4K disks but on every single 3D disk.
Does anyone have any ideas at all as I’ve gone through every setting on my PJ, AVR and Blu-ray player.
My gear is current and listed in my signature below.
Thanks for any help if you have any ideas, because I surely don’t.
GT