I too had the noise with 1.2.1. And the level is directly related to my preamp’s output setting.
I had described the sound as a click, but it is really more like a staccato electronic “pfffftt”.
Doing some additional checking and paying close attention to EXACTLY what happens, I have discovered that the noise is actually not constant in its behavior. In fact there are times when it doesn’t even occur (maybe 1 out of 5-7) and it may also fade after many up volume presses. Furthermore,I have observed that it normally DOES NOT occur during down volume presses. And when it does occur it is normally very faint.
Just to give you a reference to the level of the clicks, when my preamp is set so that normal music is in the 75-78 db range at my listening position 9-10’ from the speakers, I can just make out the noise. But my son with his better ears easily heard it from that listening position. Of course within a couple feet of the speaker it is quite obvious to anyone.
Because I have a second identical remote that I had previously ordered when I had my PWD, I also tried that one hoping that it was a remote-related issue, but it isn’t. Exact same behavior.
So I guess the fact that this is not a consistant, repeatable issue really complicates the problem. I hope to get my son’s dac in for a try later this week.
Thanks again for your interest and suggestions.