Solution 1: Sync/Restart Sync Tool Client

For detailed steps, please refer to this article: /support/article/syncrestart-the-synchronization-client

Solution 2: Use Built-in System Tools to Scan and Repair Hard Drive

Common causes of bad sectors include improper hard drive ejection, unstable voltage/current, or physical damage to the hard drive due to improper usage. In this case, you can try using the repair tools provided by the operating system to fix the issue.

For detailed steps, please refer to this article: /support/article/how-to-scan-and-repair-hard-drives-using-built-in-system-tools

Solution 3: Not Recommended to Use NTFS Format on macOS (Applicable OS: macOS)

The Eagle team has conducted extensive testing on plugins like Tuxera NTFS / Paragon NTFS. Regardless of which NTFS plugin is used, none can deliver even half of the hard drive's original performance, resulting in severe slowdowns.

For detailed steps, please refer to this article: /support/article/why-we-dont-recommend-using-tuxera-ntfs-paragon-ntfs-on-macos

Solution 4: Replace USB Port or Cable for External Hard Drive

For detailed steps, please refer to this article: /support/article/troubleshooting-switching-usb-portscables-for-external-hard-drives

Solution 5: Avoid Connecting External Hard Drive Through USB Hub

The connection quality of USB hubs directly affects data transfer speed and stability. Maintaining proper and stable hard drive connections can prevent many common issues, ensuring optimal performance for Eagle software and other applications.

For detailed steps, please refer to this article: /support/article/avoid-using-usb-hubs-for-external-hard-drives

Solution 6: Verify if Hard Drive Format is Natively Supported by System

Native format refers to the default hard drive format adopted by the operating system, such as NTFS for Windows and APFS and HFS+ for macOS. When the hard drive's file system is inconsistent with the operating system's native format, it may cause files to be unreadable or unwritable, or result in slower file read/write speeds. By confirming the hard drive format, you can determine if the issue is related to native format compatibility.

For detailed steps, please refer to this article: /support/article/how-to-determine-if-your-disk-format-is-natively-supported-by-your-operating-system

Solution 7: Read the "Data Loss" Troubleshooting Guide

For detailed steps, please refer to this article: /support/article/diskread-the-data-loss-troubleshooting-guide

Solution 8: Check Sync Status (Uploaded, Downloaded)

For detailed steps, please refer to this article: /support/article/how-to-check-sync-status-uploaded-and-downloaded

Solution 9: Map NAS Hard Drive to Drive Letter (Applicable OS: Windows)

For detailed steps, please refer to this article: /support/article/nas-why-you-should-map-network-drives-to-drive-letters

Solution 10: Check File Sync Status via Right-click "View in File Explorer"

For detailed steps, please refer to this article: /support/article/how-to-check-file-sync-status-using-the-view-in-file-explorer-option

Solution 11: Force Clear Cache and Reload Library

If you confirm that all data and materials' original files in your library are completely saved on the local hard drive, but the folder categories, file thumbnails in lists, or tags are not displaying correctly in the software, you can try using the "Clear Cache and Reload" function. This operation will generate new cache files and rescan the entire library data, which may resolve display issues.

For detailed steps, please refer to this article: /support/article/how-to-clear-cache-and-reload-your-library

Solution 12: Disable "Download on Demand" Feature

For detailed steps, please refer to this article: /support/article/how-to-disable-download-on-demand-feature-for-proper-sync

Solution 13: Check Library File Status

When using Eagle software, you may encounter data anomalies, such as images not displaying properly. In this case, you need to confirm the actual status of data on your computer to identify the root cause of the problem. To check image display issues, you can examine the status of three key files: "original file," "thumbnail," and "metadata.json" file. The status of these files can help us pinpoint the specific cause of the problem, such as missing files, incorrect file naming, or file corruption.

For detailed steps, please refer to this article: /support/article/how-to-check-eagle-library-file-status

How to resolve the issue when the quantity shown in the file list doesn't match the folder count on the left side?