wiim pro

Have a Wiim Pro, connected to amp using rca. When streaming music (I use Spotify connect) the volume randomly will drop quite low and then back again. Does so sporadically. Quite annoying. Anyone else come across this or have any ideas?

I have my WiiM pro installed between my CD player and DAC. And when using the SPDIF input to play CD's the channels are intermittently reversed (L/R to R/L) ...... I've tried reseating the cables, swapping them out completely and rebooting the unit several times to no avail. Are there any...