Topping NX4DSD RopieeeXL no DSD Playback

I posted this in the support forum, but thought this could be Ropieee related.
using Ropieeexl Roon Bridge (RPI4) connected to Topping NX4 DSD over USB.
When trying to play DSD files native DSD results in white noise (same setup works perfectly well with a Topping D50s). Switching to DOP no playback at all (but no white noise). In native DSD the NX4 does show a red led (stating DSD playback - all other formats led is blu. DOP is blue).

Any idea?

Issue resolved after two reboots of the ROCK - just like that :slight_smile:

I have the same issue but a different DAC and will be posting separately