Multiple Detections causing problems

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I've got an AlertDialog that I include a button to scan a MobileScanner() from. It works great most of the time, but I've noticed on one barcode in particular that onDetect gets called multiple times before popping the screen, and I don't know why.

This is the code:

                            MobileScanner(
                              onDetect: (barcode, args) async {
                                if (barcode.rawValue == null) {
                                  debugPrint('Failed to scan Barcode');
                                  Navigator.pop(context);
                                } else {
                                  final String code = barcode.rawValue!;
                                  debugPrint(
                                      'Barcode found! $code type: ${barcode.type}');
                                  textController.text = code;
                                  Navigator.pop(context);
                                }
                              },
                            ),

And my console ends up looking something like this (notice the two different results that are found in the rawValue):

I/flutter (32327): Barcode found! OIIPPP6 7 type: BarcodeType.text
I/flutter (32327): Barcode found! XIIPPP6 P type: BarcodeType.text
E/flutter (32327): [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: 'package:flutter/src/widgets/navigator.dart': Failed assertion: line 4959 pos 16: 'entry.route._popCompleter.isCompleted': is not true.
E/flutter (32327): #0      _AssertionError._doThrowNew (dart:core-patch/errors_patch.dart:51:61)
E/flutter (32327): #1      _AssertionError._throwNew (dart:core-patch/errors_patch.dart:40:5)
E/flutter (32327): #2      NavigatorState.pop (package:flutter/src/widgets/navigator.dart:4959:16)
E/flutter (32327): #3      Navigator.pop (package:flutter/src/widgets/navigator.dart:2433:27)
.....
.....
E/flutter (32327): #6      _RootZone.runUnaryGuarded (dart:async/zone.dart:1586:10)
E/flutter (32327): #7      _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:339:11)
E/flutter (32327): #8      _DelayedData.perform (dart:async/stream_impl.dart:515:14)
E/flutter (32327): #9      _PendingEvents.handleNext (dart:async/stream_impl.dart:620:11)
E/flutter (32327): #10     _PendingEvents.schedule.<anonymous closure> (dart:async/stream_impl.dart:591:7)
E/flutter (32327): #11     _microtaskLoop (dart:async/schedule_microtask.dart:40:21)
E/flutter (32327): #12     _startMicrotaskLoop (dart:async/schedule_microtask.dart:49:5)

So basically, I think I just need to know how to make sure the MobileScanner only detects one time before popping the screen. I do, however, need to still be able to select the Scan button as many times as I want while using the app and have the Scanner page populate.