Captcha Tasks Stuck in Processing: Distinguish \"Slow\" from \"Stuck\" and Troubleshoot in Order

When a captcha task keeps returning processing, the common causes fall into four categories: Token-type tasks are inherently slow, the polling code is flawed, the task parameters contain soft errors, or the proxy or target site has an issue. This article gives you the judgment methods, troubleshooting order, polling pseudocode with an overall timeout, and how to retry and stop losses after a timeout.