I am getting the same error with my RPi4 8Gb using HiFiberry DAC+ DSP running m2p 2.52.
After updating/upgrading via the web interface, I can not make any selections on this page. I had to reinstall the image and not make any OS/Kernel updates to keep functionality of this page.
I am hoping this helps to troubleshoot in future RPi4 builds. Thanks for all your help and development of this great product.
Update: I updated everything using SSH and disabled the RPi Bluetooth settings using the CLI which works for now.
I have a HifiBerry AMP2 and two RPi 3’s all synced and working but the EQ does not work on any of my devices. I selected the plug equal settings in the squeeze player. Please help. My speakers sound so much better when I use the EQ in the Deezer ap.
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