I have to report another plugin callback error:
The function
Code:
void ts3plugin_onEditCapturedVoiceDataEvent(uint64 serverConnectionHandlerID, short* samples, int sampleCount, int channels, int* edited)
is called with wrong values for the parameter 'channels'. In mono channels it is 2 and in Stereo (aka Opus Music) Channels it is 1. In the old version it was the other way round, which makes much more sense 
/Edit: it's not always exactly the wrong way round but the parameters of that function are most certainly broken.