Expire temp links cannot exceed 7 days
Saving Files download settings failed because Symlink expiry (minutes) was greater than 10080 (7 days).
Why this happens
Admin-only validation on symlink_expire. Temporary /d/{token} grants cannot live longer than a week. Downloaders never see this string.
Diagnose and fix
1. Admin → Settings → Files → Symlink expiry — set between 1 and 10080 minutes (default often 15).
2. Save again.
3. Existing grants keep their original expiry; new mints use the new TTL.
4. See also the minimum of 1 minute.