Fix Guide: Tahoe iCloud Photos "Upload Paused" Fix

Symptom: Photos app on macOS Tahoe shows "Upload Paused" or "Syncing with iCloud..." indefinitely, even with a strong internet connection.

Why this happens

The Tahoe background asset downloader (cloudphotod) can hang when encountering a corrupted database entry or a mismatch in the system's "ProtectedCloudStorage" keys.

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Fix 1: Force Restart the Cloud Engine

1. Open Terminal.
2. Run these commands sequentially:

killall cloudphotod

killall photolibraryd

1. Wait 30 seconds and relaunch the Photos app.

Fix 2: Repair Library

1. Quit Photos.
2. Hold Command + Option while clicking the Photos icon to open it.
3. Click Repair to verify the library database.

Recommended Tool: Gemini 2

If your library is stuck due to massive amounts of duplicates:

- Get Gemini 2 to quickly find and clean up duplicate photos, making it much easier for iCloud to finish the initial sync.