diff --git a/src/gui/GraphEditorWidget.cpp b/src/gui/GraphEditorWidget.cpp
index 57f4505..42d7037 100644
--- a/src/gui/GraphEditorWidget.cpp
+++ b/src/gui/GraphEditorWidget.cpp
@@ -719,18 +719,60 @@ void GraphEditorWidget::onConnectionCreated(QtNodes::ConnectionId const connecti
     }
 
     if (connectionId.outPortIndex >= static_cast<QtNodes::PortIndex>(outInfo->outputPorts.size())) {
+        qWarning() << "Output port index out of bounds:" << connectionId.outPortIndex << ">=" << outInfo->outputPorts.size();
+        m_model->deleteConnection(connectionId);
         return;
     }
 
     if (connectionId.inPortIndex >= static_cast<QtNodes::PortIndex>(inInfo->inputPorts.size())) {
+        qWarning() << "Input port index out of bounds:" << connectionId.inPortIndex << ">=" << inInfo->inputPorts.size();
+        m_model->deleteConnection(connectionId);
         return;
     }
 
     const uint32_t outputPortId = outInfo->outputPorts.at(connectionId.outPortIndex).id;
     const uint32_t inputPortId = inInfo->inputPorts.at(connectionId.inPortIndex).id;
 
+    const Potato::NodeInfo freshOutInfo = m_controller->nodeById(outInfo->id);
+    const Potato::NodeInfo freshInInfo = m_controller->nodeById(inInfo->id);
+    
+    if (!freshOutInfo.isValid() || !freshInInfo.isValid()) {
+        qWarning() << "Node no longer exists in PipeWire";
+        m_model->deleteConnection(connectionId);
+        return;
+    }
+
+    bool outputPortExists = false;
+    for (const auto &port : freshOutInfo.outputPorts) {
+        if (port.id == outputPortId) {
+            outputPortExists = true;
+            break;
+        }
+    }
+
+    bool inputPortExists = false;
+    for (const auto &port : freshInInfo.inputPorts) {
+        if (port.id == inputPortId) {
+            inputPortExists = true;
+            break;
+        }
+    }
+
+    if (!outputPortExists) {
+        qWarning() << "Output port" << outputPortId << "does not exist in PipeWire node" << outInfo->id;
+        m_model->deleteConnection(connectionId);
+        return;
+    }
+
+    if (!inputPortExists) {
+        qWarning() << "Input port" << inputPortId << "does not exist in PipeWire node" << inInfo->id;
+        m_model->deleteConnection(connectionId);
+        return;
+    }
+
     const uint32_t linkId = m_controller->createLink(outInfo->id, outputPortId, inInfo->id, inputPortId);
     if (linkId == 0) {
+        qWarning() << "Failed to create link between" << outInfo->id << ":" << outputPortId << "->" << inInfo->id << ":" << inputPortId;
         m_model->deleteConnection(connectionId);
         return;
     }