Fix Cloud Sync Stuck at 99% or Hanging — Troubleshooting Stalled Transfers in RcloneView
The progress bar says 99%. It's been saying 99% for 45 minutes. Is it working? Is it stuck? Should you cancel? Here's how to diagnose and fix stalled cloud transfers.
Stalled cloud transfers are one of the most frustrating issues in cloud sync. The job appears to be running, the progress indicator barely moves, and you're unsure whether to wait or restart. The good news: stalled transfers almost always have a specific, fixable cause.

Manage & Sync All Clouds in One Place
RcloneView is a cross-platform GUI for rclone. Compare folders, transfer or sync files, and automate multi-cloud workflows with a clean, visual interface.
- One-click jobs: Copy · Sync · Compare
- Schedulers & history for reliable automation
- Works with Google Drive, OneDrive, Dropbox, S3, WebDAV, SFTP and more
Free core features. Plus automations available.