Audio Disconnect from DDJ RZ and DJM 900nxs in Rekordbox DJ 5.2.0

I have had my audio disconnect on a channel on both my DJM 900 (USB direct to laptop, audio selector or USB) and my DDJ RZ.

I will be playing a track on channel 2, mix channel 1 in, load a new track in channel 2, and I will have no audio to the mixer main or cue from channel 2.  This isn't exclusive to the channel, it happens on all four sporadically.

I've discovered if I restart Recordbox DJ the issue resolves itself.  Unfortunately restarting Rekordbox DJ halfway through 4 hour set is mildly challenging. This has not happened before 5.2.0.

Running:
Rekordbox 5.2.0

Machine:

MacBook Pro (Retina, 15-inch, Mid 2015), 

2.5 GHz Intel Core i7

16 GB 1600 MHz DDR3

Anyone else experiencing this? Any recommendations? Reinstall Rekordbox? Try a Beta? Open to suggestions.