Download captcha enabled but not configured
The download page warns that captcha is enabled for this account type, but the selected provider is not configured — visitors can continue without solving a captcha.
Why this happens
Per-tier Download captcha (toggle.ul2_cap_dl_*) is on, while captcha_mode keys are incomplete. Download grant soft-fails: the server skips verification and the UI shows this banner instead of blocking. Comment captcha missing keys usually hard-blocks with Captcha enabled but not configured.
Diagnose and fix
1. Settings → Captcha — set provider and fill public/secret keys for that mode.
2. Users & limits → Download captcha — turn off for tiers that should not require it, or leave on once keys work.
3. Hard-refresh a download page and confirm the widget appears (or the warning disappears).
4. Distinct from Captcha verification failed (keys work, challenge failed).