wp_insert_post, wp_update_post and update_post_meta remove backslashes from your data. Here is a minimal reproduction and the wp_slash fix.

Short answer: the reply stopped in the middle of a sentence because the model hit the output limit. The response said finishReason: MAX_TOKENS. In my run the model used 573 tokens for thinking and only 23 for the visible text, and I had set maxOutputTokens to 600. I raised the limit to 2048 and the

Short answer: this 400 error means the model name inside the request URL is not a valid model code. In my case the URL still contained a placeholder text instead of a real model code. Put a real model code from Google documentation in the URL, run the node again, and the error goes away.

Short answer: the message means another apt or dpkg process is holding the package system lock. Wait for it to finish or cancel it, then run your command again. You can see which process holds the lock with ps and lsof. Do not delete the lock file. What the message means Ubuntu allows only one

Short answer: a 404 from an n8n webhook usually means the webhook is not active in the state you called it, not that it is broken. Every Webhook node has two URLs, and each one only works in one specific state. The error message tells you which state you are missing. The two webhook URLs