Nuprime CDT-8 Transport with DS DAC

I am using NuPrime CDT-8 PRO Transport for reading Redbook CDs .Transport connects with Dircetstrem DAC via I2S and Coax inputs and outputs. This transport has a bunch of outputs including DSD-64 and DSD-128.

During the playback and between the tracks I hear a popping / crackling noise and this noise is coming out only selecting DSD64 and DSD128 outputs on transport . Rest of outputs ( PCMs) up to are working fine.

Does somebody else has the same problem?