How do I fix iCloud Photos Upload Paused in macOS Tahoe 26.2?

Three approaches in order of safety: (1) Force Restart the Cloud Engine; (2) Repair Library. Full Terminal commands and System Settings paths are inside each section.

Is this fix confirmed for macOS Tahoe 26.2?

Yes — verified on macOS Tahoe 26.2. Article is updated when Apple ships a point release that changes the symptom or fix.

How to Fix iCloud Photos Upload Paused in macOS Tahoe 26.2

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

TL;DR fix

Start with Fix 1: Force Restart the Cloud Engine. If the issue persists after that, try Fix 2: Repair Library. Full Terminal commands and step-by-step instructions are in each section below.

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.

Recommended Troubleshooting Tool

Before proceeding with manual fixes, we recommend using CleanMyMac X. The gold standard for identifying hidden System Data bloat and runaway log files.

Fix 1: Force Restart the Cloud Engine

Open Terminal.
Run these commands sequentially:

killall cloudphotod

killall photolibraryd

Wait 30 seconds and relaunch the Photos app.

Fix 2: Repair Library

Quit Photos.
Hold Command + Option while clicking the Photos icon to open it.
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.

Tested and documented by the MacDebug team — about MacDebug. See also Fix macOS "Photos Library" Locked, Fix macOS "Photos Library Not Opening", or browse all guides on macdebug.