[LAU] Trouble using BinauralDecoder from iempluginsuite

Hello, I've been trying to improve the ambisonic decoding for a project in SuperCollider on Arch Linux. Typically I use newCIPIC decoder kernel from the ATK. As an alternative, I first tried the ambix VST plugin in Ardour. When I could get it to work I got excellent results, however it crashed Ardour constantly and the standalone version was equally unstable. The ambix project seems to have stopped development more than 2 years ago. I then tried the VST version BinauralDecoder from iempluginsuite. This works well in Ardour testing with a 2nd order N3D signal. The standalone version however fails to produce  an output and seems to be caught in a constant internal feedback loop, ie. it shows "INPUT MUTED" when the audio settings have "Feedback loop: mute audio input" selected and also produces feedback when set to ALSA (rather than Jack) and the "test" button selected. This feedback occurs with no input connections in Pipewire. In SuperCollider (from which would be the ideal platform for me to use the BinauralDecoder), I again attempted to use the VST version using VSTPlugin and its associated classes. When however I scan for plugins with VSTPlugin.search, it prints: '/usr/lib/vst3/BinauralDecoder.vst3' is black-listed. I've not been able to find where that blacklist is located. The same plugin continues to work correctly in Ardour. The version installed of the iempluginsuite is the latest: 1.13.0-1. Does anyone have any suggestions? Merry Christmas,