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Sync folder error says folder already synced

Adding a sync folder on Windows or macOS shows an error claiming the folder is already synced.

Tier II · Emerging Problems that are still building up.

5 public reports · first reported 10 October 2026 · last reported 11 October 2026

Idea report · $9 · No contacts · All sales final

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What's going wrong

Users adding a folder to the Nextcloud desktop client on macOS and Windows get an error that the folder is already synced, although they never set it up.

AI-assisted: written with the help of AI from the reports. The idea report has the full summary.

In the idea report

  • The full summary.
  • The products the 5 reports are about, and how many came each month.
  • Related problems.

No business has been found with this problem yet, so the report has no contacts. All sales are final — no refunds. Pricing.