Allo DigiOne board

Anyone using their DigiOne with a Mojo? I just bought one. Mounted it on the back of one of these (some case modification required)

But, Wouldn’t work with my Mojo. Thought I had a bumb board. But then I decided to pair it with my DacMagic Plus and it works like a charm.

I tried a few different RCA to 3.5mm mono adapters. Could my Mojo not be working right? Do I need a special rca to 3.5mm I didnt know I need, that maybe forgot I have?