Error:Waiting for the subject segmentation optional module to be downloaded.

[starwave2]

Describe your issue. If applicable, add screenshots to help explain your problem.

How I find the problem:
I have successfully seg pictures with this subject segmentation plugin, and I worked on other pages for several days. Today I try my succeeded-seg-page, but it fails this time.The try-catch throw out the Error like:'Waiting for the subject segmentation optional module to be downloaded.'
I never uninstall the app , change any settings or change the function code of segmentation
The backend shows no use of the Internet, so I can make sure the module is not downloading.

What I have did to fix:
I checked settings, dependencies in build.gradle, (android:value="subject_segment") in AndroidManifest, all correct.
I reload the google_mlkit_subject_segmentation: ^0.0.2 dependencies in pubspec.yaml
I re-install the app after checked settings.
Still failed.

My code:

Future<ImageProvider?> segment(InputImage inputImage) async {
      final SubjectSegmenter segmenter = SubjectSegmenter(
      options: SubjectSegmenterOptions(
      enableForegroundConfidenceMask: false,
      enableForegroundBitmap: true,
      enableMultipleSubjects: SubjectResultOptions(
        enableConfidenceMask: true,
        enableSubjectBitmap: true,
               ),
             ),
         );
    
            try {
    final mask = await segmenter.processImage(inputImage);
    Get.defaultDialog(title: '1');  
    
    if (mask.subjects.isEmpty) {
      Get.defaultDialog(title: 'Error', content: Text('No Enetity'));
      return null;
    }
    
    final Uint8List? data = mask.subjects[0].bitmap;
    if (data == null) {
      Get.defaultDialog(title: 'Error', content: Text('bitmap is null'));
      return null;
    }
    
    await saveImageToGallery(data);  
    return Image.memory(data!).image;
     return MemoryImage(data);  
    
    } catch (e, stackTrace) {
  
    print('segment function error: $e');
    print('stack fail: $stackTrace');
    Get.defaultDialog(title: 'Fail', content: Text('Error: $e'));
    return null;
    } finally {
      segmenter.close();  
    }
   }

Steps to reproduce.

Just run the function

What is the expected result?

problem solved
or I can somehow control the model-downloading process

Did you try our example app?

Yes

Is it reproducible in the example app?

No

Reproducible in which OS?

Android

Flutter/Dart Version?

No response

Plugin Version?

google_mlkit_subject_segmentation: ^0.0.2