# CVC Errors

[ERR-20260404-001] [Medium] [Telegram Parsing]
Summary: Discovered that using `ParseMode.HTML` during live token streaming causes `aiogram.exceptions.TelegramBadRequest` due to unclosed tags mid-stream.
Resolution: Only apply `ParseMode.HTML` on the initial `message.reply` and action buttons, but pass `parse_mode=None` during chunked `edit_message_text` flushes so raw Markdown tags are safely treated as plaintext until streaming finishes.