Hi, Yes, I have manaed to reproduce the issue using 2 DISKITs.
If the IDC777 is doing the OPEN UTXV, then the I2S IN works (You can hear whatever is on the I2S on the other side on the URX1). But the I2S OUT does not. The AUdio actually ends up in the Analog anway but nooisy I think this is a bug that was introduced in the latest firmware. So I’ll ask for it to be fixed.
