Dr-fusion 2 VST plays only on the left channel

[Eksobit]

I use Dr-fusion v2 VST in musagi tracker. For some reason it plays way louder on the left channel and almost not at all on the right one, when the pan knobs are on default position. If I pan everything all the way to the right it hardly rises the volume on the right channel. If I pan everything to the left, the volume on the left channel rises effectively.

There are six channel options on the lower part of the interface. I tried to put instruments to other channels than the default one (1). It just mutes them completely.

Is there an universal pan knob somewhere on the interface, that I haven't just found? Or is it perhaps musagi that doesn't cope with Dr-fusion's stereo?