---
title: "Visual Object Tracking problems"
slug: "arceye-troubleshoot-vot"
updated: 2026-09-17T09:18:20Z
published: 2026-09-17T09:18:20Z
canonical: "guide.ncloud-docs.com/arceye-troubleshoot-vot"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://guide.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Visual Object Tracking problems

Available in Classic and VPC

You may encounter the following problems when you use ARC eye: View the causes and solutions by problem and take proper action.

## Upload failed

The ARC eye Scan app says the video upload completed, but the console says the upload failed.

#### Cause

An unknown error may occur during the process of uploading the video on the console, so the video may not be uploaded on the console. Or the video may not be uploaded on the console due to the problem of the video itself.

#### Solution

Delete the video on the console and upload the video on the ARC eye Scan app again or retake a video to upload it again.

## Data preparation failed

The status of the video uploaded on the console is displayed as Data preparation failed.

#### Cause

An unknown error may occur during the process of preparing data for tagging, so the data preparation may fail. Or the data preparation may fail due to the problem of the video itself.

#### Solution

Delete the video on the console and upload the video on the ARC eye Scan app again or retake a video to upload it again.

## No status change after tagging

Tagging is completed, but the status of the video is not changed to Creating object.

#### Cause

An unknown error may occur, so the status of the video may not be changed on rare occasions after tagging.

#### Solution

Proceed from the project creation step again.

## Object creation failed

After tagging is completed, the status of the video is displayed as Object creation failed.

#### Cause

An unknown error may occur during tagging, so the object may not be created successfully.

#### Solution

Click the **[Tagging]** button on the video of the **Object** screen and proceed with tagging again.