Kind of working now, but maybe not in the best way...

Source/PS_Source/ProcessedStretch.h

@@ -443,6 +443,18 @@ public:
 	AudioParameterBool* m_enabled = nullptr;
 };
 
+// Special function to swap the modules. We don't want to mess up the AudioParameterBool pointers,
+// just swap the boolean states...
+
+inline void swapSpectrumProcesses(SpectrumProcess& a, SpectrumProcess& b)
+{
+	bool aenab = *b.m_enabled;
+	bool benab = *a.m_enabled;
+	std::swap(a.m_index, b.m_index);
+	*a.m_enabled = aenab;
+	*b.m_enabled = benab;
+}
+
 class ProcessedStretch final : public Stretch
 {
 public:

Source/PluginEditor.cpp

@@ -348,7 +348,7 @@ void PaulstretchpluginAudioProcessorEditor::timerCallback(int id)
 		m_wavecomponent.setTimeSelection(processor.getTimeSelection());
 		if (processor.m_state_dirty)
 		{
-			m_spec_order_ed.setSource(processor.getStretchSource());
+			//m_spec_order_ed.setSource(processor.getStretchSource());
 			processor.m_state_dirty = false;
 		}
 	}
@@ -950,7 +950,8 @@ void SpectralChainEditor::mouseDrag(const MouseEvent & ev)
 		int new_index = ev.x / box_w;
 		if (new_index >= 0 && new_index < m_order.size() && new_index != m_cur_index)
 		{
-			std::swap(m_order[m_cur_index], m_order[new_index]);
+			swapSpectrumProcesses(m_order[m_cur_index], m_order[new_index]);
+			
 			m_cur_index = new_index;
 			m_did_drag = true;
 			m_src->setSpectrumProcessOrder(m_order);
@@ -1025,7 +1026,7 @@ void SpectralChainEditor::drawBox(Graphics & g, int index, int x, int y, int w,
 	//g.drawFittedText(m_order[index].m_enabled->name, x, y, w, h, Justification::centred, 3);
 	g.setColour(Colours::gold);
 	g.drawRect(x + 2, y + 2, 12, 12);
-	if (*m_order[index].m_enabled == true)
+	if ((bool)*m_order[index].m_enabled == true)
 	{
 		g.drawLine(x+2, y+2, x+14, y+14);
 		g.drawLine(x+2, y+14, x+14, y+2);