CDJ2000NXS2 E-8302 (B00A)

Ive got 2x CDJ3000, 1x CDJ2000NXS2, 1x DJM900NXS2. All items are linked together via a network switch. There is one audio source, a Samsung T5 500GB external SSD, connected to one of the CDJ3000. 

I have a song purchased from Bandcamp (FLAC). The CDJ2000NXS2 gets a 'cannot play track error'  - E-8302 (B00A).

The file plays fine on both the CDJ3000.

Any idea what is causing this? All my other FLACs play fine on all devices.