just to add to this being I have been helping Marc out
This happens in Mavericks too so its not the OS and it was a fresh install of Yosemite
this also happened before the Samsung SSD was installed so its not the hard drive either
Ethernet cables were swapped for brand new ones
can't be a single deck issue in my opinion being this started happening recently to both decks at the same time
Last thing i suggested to Marc was to play strictly from an extern USB drive for a few events eliminating the possibility of it being the laptop or RB OR downgrade to a previous version like 3.0.3 that he knew worked properly