Uploads that seem stuck

Big files genuinely take a while

Upload speed is limited by your connection's upload bandwidth, which is usually a fraction of download. A 600MB 4K clip on a typical home connection can take 5–10 minutes — the progress bar shows filename, percentage, and MB transferred so you can tell moving from stuck.

If it fails mid-way

Files over ~6MB upload in resumable chunks that retry automatically on network blips. If an upload still errors, the message will say why — most commonly the 5GB per-file cap or the storage quota.

Practical tips

• Prefer Wi-Fi over cellular for anything big.
• Keep the tab open until the bar completes — closing it cancels the upload.
• Export at 1080p unless you truly need 4K; it's a quarter of the size and indistinguishable on phone screens.