AWSS3TransferUtility GIF fails without any response

[nastasiupta]

Describe the bug
I have a function that uses awsTransferUtility to upload from an URL (for example a video or a gif)

To Reproduce

1. The user selects a GIF from Photos app
2. Setup AWSS3TransferUtility and upload the file from given URL:

return try await withCheckedThrowingContinuation { continuation in
    defer {
        let continuationError = NSError(domain: "S3AsyncWorker",
                                        code: 999,
                                        userInfo: [NSLocalizedDescriptionKey: "Continuation was not resumed properly."])
            continuation.resume(throwing: continuationError)
    }

    func transferUtility(uploadFile: URL, contentType: String) {
        awsTransferUtility.uploadFile(uploadFile,
                                      bucket: bucket,
                                      key: key,
                                      contentType: contentType,
                                      expression: expression) { task, error in
            if let error = error {
                ....
            } else {
               ....
            }
        }
    }
    
    ....
}

3. The completion block is not called
   The same flow is executed for a video and everything works great, in case of video contentType is "video/mp4", in case of gif is "image/gif"
   This is printed at console: SWIFT TASK CONTINUATION MISUSE: execute(data:) leaked its continuation!
   Later edit:
   after I added defer, the worker is throwing the error "Continuation was not resumed properly."

Environment(please complete the following information):

• SDK Version: 2.37.2
• Dependency Manager: SPM
• Xcode Version: 16.1

Device Information (please complete the following information):

• Device: iPhone 14 Pro
• iOS Version: 18.1

Later edit:
So, the issue is related to the url for GIFs selected from Photos app.
At the moment when the user selects a GIF, I covert it to Data and use awsTransferUtility.uploadData and everything works as expected.

[edisooon]

Hi @nastasiupta, thank you for submitting the issue!
One of our team members will look into this and verify if it's a bug in the library.
Meanwhile, could you provide us with your full logs?