followup

src/main/java/com/sparrowwallet/sparrow/control/QRScanDialog.java

@@ -188,7 +188,8 @@ public class QRScanDialog extends Dialog<QRScanDialog.Result> {
             }
         });
         webcamDeviceProperty.addListener((_, _, newValue) -> {
-            Config.get().setWebcamDevice(newValue.getUniqueId());
+            Config.get().setWebcamDevice(newValue.getName());
+            Config.get().setWebcamDeviceId(newValue.getUniqueId());
             if(!Objects.equals(webcamService.getDevice(), newValue)) {
                 webcamService.cancel();
             }

src/main/java/com/sparrowwallet/sparrow/control/WebcamService.java

@@ -144,7 +144,7 @@ public class WebcamService extends ScheduledService<Image> {
                             }
                         } else if(Config.get().getWebcamDevice() != null) {
                             for(CaptureDevice webcam : availableDevices) {
-                                if(webcam.getUniqueId().equals(Config.get().getWebcamDevice())) {
+                                if(webcam.getUniqueId().equals(Config.get().getWebcamDeviceId())) {
                                     selectedDevice = webcam;
                                     break;
                                 }

src/main/java/com/sparrowwallet/sparrow/io/Config.java

@@ -63,6 +63,7 @@ public class Config {
     private boolean mirrorCapture = true;
     private boolean useZbar = true;
     private String webcamDevice;
+    private String webcamDeviceId;
     private ServerType serverType;
     private Server publicElectrumServer;
     private Server coreServer;
@@ -437,6 +438,15 @@ public class Config {
         flush();
     }
 
+    public String getWebcamDeviceId() {
+        return webcamDeviceId;
+    }
+
+    public void setWebcamDeviceId(String webcamDeviceId) {
+        this.webcamDeviceId = webcamDeviceId;
+        flush();
+    }
+
     public ServerType getServerType() {
         return serverType;
     }