Hi, I upgraded Hifiberry os to the latest version 20230404 and DSP profile from v12 to v14. Unfortunately, it turned out SPIDIF input does not work as it doesn't produce any sound. It recognises that the audio is playing in the UI but there's no sound.
Reverting DSP profile to v12 fixes the issue but it doesn't change the fact that the last 2 DSP profiles don't work (v13 & v14)
I found a similar issue on Github which confirms that I'm not alone: https://github.com/hifiberry/hifiberry-os/issues/432
Device: Hifiberry DAC+ DSP & Raspberry PI 3B+