Multitrack playback halts after a few seconds

I am at my wits end trying to solve this problem, I feel like I've troubleshot everything I can think of and nothing works.  When working in multitrack, I hit play and the tracks play for a few seconds and then cut to silence completely. The playhead continues moving, but no sound or waveforms are generated. Video of the error here: https://www.youtube.com/watch?v=e5z8ndShZuQ

Things I have tried that have not worked:

• Restarted Audition
• Restarted the entire computer
• Moved project and source files from an external drive to internal SSD
• Changed audio output devices (from wired headphones to wireless headset)
• Changed the latency setting in the Audio Hardware menu
• Toggled Hardware Acceleration on and off (and restarted)
• Pre-rendered tracks
• Cleared media caches
• Toggled effects on and off
• Changed RAM available to Audition from 50 GB to 58 GB (max allotment)

 This is a high-end PC that I use for both gaming and intensive editing in Premiere and other Adobe products, I cannot fathom why two tracks in Audition would overload it like this. 

Specs:

No matter what I do, I cannot get the tracks to play for longer than 5 seconds like this. They always cut out, even though I only have two tracks here. If anyone has any ideas of what I can do, please help! I'm at a loss, I really don't know what else to even try that would cause this, but it makes Audition entirely unusable.