Sonic Charge New Effect Plugin , Phase Of Channel Keeps Inverted

sonic charge has just released a new effect ’ permut 8 ’
In permat8 we have the option to invert the phase of the right channel …ok but it seems that is some cases ( after some really heavy usage of the plugin ) the right channel of the phase is still inverted , even when the plugin is bypassed , even deleted …funny thing is the inverted signal
only occurs on the channel where the effect was loaded
Not sure if this is a bug in renoise or the effect