🐛 Fix not using correct Port pointer in routing

- `&out` is only a pointer to a copy of the Port object that the for loop creates
- This results in `&out` always refering to the last processed list item instead of the specific port

routing.go

@@ -144,8 +144,8 @@ func processJackCb(nframes uint32) int {
 
 	// Get memory addresses to write to for all outputs
 	var outputBuffers []JackOutputBuffers = []JackOutputBuffers{}
-	for _, out := range portConfig.Output {
-		outputBuffer := JackOutputBuffers{&out, [][]jack.AudioSample{}}
+	for i, out := range portConfig.Output {
+		outputBuffer := JackOutputBuffers{&portConfig.Output[i], [][]jack.AudioSample{}}
 		for _, port := range out.object {
 			buffer := port.GetBuffer(nframes)
 			for i := range buffer {