I am trying to reinstall my Nuvi map but it appears from the Express.log that a "ByteSizeMismatchException" keeps recurring and Garmin Express (latest version) advises there was an error in the download. It looks like this error affected a couple of other forum members a while ago and was determined to be server-side fault. Is there someone on here from Garmin who could look into this for me or do I need to contact phone support for this?
Thanks.
C:\ProgramData\Garmin\Logs\Express>tail -f Express.log
2025-06-10 20:19:36.1697 | 18 | W | DownloadManager[] - 51c5f2ef - Byte comparison failed. Expected: 366208000 Actual: 366207332
2025-06-10 20:19:36.2477 | 18 | W | DownloadManager[] - 51c5f2ef - Retrying download after Exception: Networking.DownloadManager.ByteSizeMismatchException: Exception of type 'Networking.DownloadManager.ByteSizeMismatchException' was thrown.
at Networking.DownloadManager.DownloadManager.<>c__DisplayClass8_0.<<DownloadFileAsync>b__0>d.MoveNext()
2025-06-10 20:19:36.3027 | 32 | I | DownloadManager[] - 51c5f2ef - Request Status Code: OK
2025-06-10 20:19:36.3027 | 32 | I | DownloadManager[] - 51c5f2ef - Beginning download at byte index 0. (OK)
2025-06-10 20:19:38.7081 | 9 | W | DownloadManager[] - 1f4779da - Byte comparison failed. Expected: 302181376 Actual: 302180767
2025-06-10 20:19:38.8071 | 9 | W | DownloadManager[] - 1f4779da - Retrying download after Exception: Networking.DownloadManager.ByteSizeMismatchException: Exception of type 'Networking.DownloadManager.ByteSizeMismatchException' was thrown.
at Networking.DownloadManager.DownloadManager.<>c__DisplayClass8_0.<<DownloadFileAsync>b__0>d.MoveNext()
2025-06-10 20:19:38.8891 | 32 | I | DownloadManager[] - 1f4779da - Request Status Code: OK
2025-06-10 20:19:38.8891 | 32 | I | DownloadManager[] - 1f4779da - Beginning download at byte index 0. (OK)
2025-06-10 20:24:22.6971 | 17 | W | DownloadManager[] - 1f4779da - Byte comparison failed. Expected: 302181376 Actual: 302180767
2025-06-10 20:24:22.8830 | 17 | W | DownloadManager[] - 1f4779da - Retrying download after Exception: Networking.DownloadManager.ByteSizeMismatchException: Exception of type 'Networking.DownloadManager.ByteSizeMismatchException' was thrown.
at Networking.DownloadManager.DownloadManager.<>c__DisplayClass8_0.<<DownloadFileAsync>b__0>d.MoveNext()
2025-06-10 20:24:22.9870 | 17 | E | DownloadManager[] - 1f4779da - Download Failed.
System.AggregateException
All DownloadManager.DownloadFileAsync() retries failed.
2025-06-10 20:24:23.0990 | 17 | E | FileDownloader[] - RetryOnFault failed 1 times out of 1.
System.AggregateException
All DownloadManager.DownloadFileAsync() retries failed.
2025-06-10 20:24:24.2697 | 25 | I | DownloadManager[] - 60eefb55 - Request Status Code: OK
2025-06-10 20:24:24.2697 | 25 | I | DownloadManager[] - 60eefb55 - Beginning download at byte index 0. (OK)
2025-06-10 20:24:40.0990 | 16 | W | DownloadManager[] - 51c5f2ef - Byte comparison failed. Expected: 366208000 Actual: 366207332
2025-06-10 20:24:40.1480 | 16 | W | DownloadManager[] - 51c5f2ef - Retrying download after Exception: Networking.DownloadManager.ByteSizeMismatchException: Exception of type 'Networking.DownloadManager.ByteSizeMismatchException' was thrown.
at Networking.DownloadManager.DownloadManager.<>c__DisplayClass8_0.<<DownloadFileAsync>b__0>d.MoveNext()
2025-06-10 20:24:40.1480 | 16 | E | DownloadManager[] - 51c5f2ef - Download Failed.
System.AggregateException
All DownloadManager.DownloadFileAsync() retries failed.
2025-06-10 20:24:40.1480 | 16 | E | FileDownloader[] - RetryOnFault failed 1 times out of 1.
System.AggregateException
All DownloadManager.DownloadFileAsync() retries failed.
2025-06-10 20:24:40.3480 | 27 | I | DownloadManager[] - a6e98c56 - Request Status Code: OK
2025-06-10 20:24:40.3480 | 27 | I | DownloadManager[] - a6e98c56 - Beginning download at byte index 0. (OK)
2025-06-10 20:25:14.1831 | 9 | I | DownloadManager[] - a6e98c56 - Download Succeeded.
2025-06-10 20:28:46.9057 | 4 | W | DownloadManager[] - 60eefb55 - Byte comparison failed. Expected: 237423616 Actual: 237423552
2025-06-10 20:28:46.9436 | 4 | W | DownloadManager[] - 60eefb55 - Retrying download after Exception: Networking.DownloadManager.ByteSizeMismatchException: Exception of type 'Networking.DownloadManager.ByteSizeMismatchException' was thrown.
at Networking.DownloadManager.DownloadManager.<>c__DisplayClass8_0.<<DownloadFileAsync>b__0>d.MoveNext()
2025-06-10 20:28:47.0056 | 26 | I | DownloadManager[] - 60eefb55 - Request Status Code: OK
2025-06-10 20:28:47.0056 | 26 | I | DownloadManager[] - 60eefb55 - Beginning download at byte index 0. (OK)
2025-06-10 20:32:07.5410 | 31 | W | DownloadManager[] - 60eefb55 - Byte comparison failed. Expected: 237423616 Actual: 237423552
2025-06-10 20:32:07.5870 | 31 | W | DownloadManager[] - 60eefb55 - Retrying download after Exception: Networking.DownloadManager.ByteSizeMismatchException: Exception of type 'Networking.DownloadManager.ByteSizeMismatchException' was thrown.
at Networking.DownloadManager.DownloadManager.<>c__DisplayClass8_0.<<DownloadFileAsync>b__0>d.MoveNext()
2025-06-10 20:32:07.5870 | 31 | E | DownloadManager[] - 60eefb55 - Download Failed.
System.AggregateException
All DownloadManager.DownloadFileAsync() retries failed.
2025-06-10 20:32:07.5870 | 31 | E | FileDownloader[] - RetryOnFault failed 1 times out of 1.
System.AggregateException
All DownloadManager.DownloadFileAsync() retries failed.
2025-06-10 20:32:07.6020 | 32 | E | FileDownloader[] - FileDownloader - Failed to download file
Garmin.Omt.Service.Download.FileDownloader+DownloadException
Exception of type 'Garmin.Omt.Service.Download.FileDownloader+DownloadException' was thrown.
at Garmin.Omt.Service.Download.FileDownloader.<>c__DisplayClass29_0.<<DownloadAsync>b__1>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
at Garmin.Omt.Service.Download.FileDownloader.<DownloadAsync>d__29.MoveNext()
2025-06-10 20:32:07.6020 | 32 | D | ComputerPowerUtil[] - Setting sleep prevention mode to OFF.
2025-06-10 20:32:07.6020 | 32 | W | OperationQueue[] - Exception in operation Garmin.Omt.Service.Operation.Map.UpdateMapOperation.
System.AggregateException
All DownloadManager.DownloadFileAsync() retries failed.
2025-06-10 20:32:07.6020 | 32 | I | OperationQueue[] - Removing operation Garmin.Omt.Service.Operation.Map.UpdateMapOperation from queue.
2025-06-10 20:32:07.6340 | 1 | D | NavigationService[] - Page changed to DeviceDashboardViewModel