UploadLargeFileWithSession crash at 100% without result

Greetings,

our code, .NET 4.5, Box.V2 SDK 3.14.1

Problem: When upload large file near 1GB, the upload will crash with 6 errors,

1-3 "A Task was cancled"

3-6 "The API returned an error [RequestedRangeNotSatisfiable | 7f0065b2ed30774ef6156232a1ad4c1f] range_overlaps_existing_part - Part overlaps with previously uploaded part: {id: "EE157631", "offset": 570425344, "size": 33554432}"

Whend send timeout with null, as promoted by some Box-Dev, the result does not get better.

When send timeout of 2 hours, upload works fine.

So our Question is, what timeout time should be send with the request?

here some additional timeout trials:

//null fail
//200tik fail
//20 sec fail
//1 min ?
//5 min ok
//10 min ok
//13 min ok
//14 min ok
//20 min ok

/// 
        /// Lädt die Datei async await nach box hoch, bei einem Fehler wird versucht den vorgang zu wiederholen bis zu 3x
        /// 
        /// geladene BoxClient
        /// Geladener Stream
        /// null oder BoxFile
        private async Task DoWorkAsync3TimeLoop(BoxClient aClient, Stream aStream)
        {
            int iterator = 0;
            int maxIterator = 3;

            while (iterator < maxIterator)
            {
                try
                {
                    // do the work in the loop - and wait for
                    var some = await aClient.FilesManager.UploadUsingSessionAsync(aStream, "VLargeFile.zip", "SOME FOLDER ID", progress: _asyncProgress);
                    return some;
                }
                catch (Exception ex)
                {

                    // when crash retry
                    string text;
                    text = ex.Message;
                    iterator++;
                }
            }
            return null;
        }

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