My 5 trading bots reported every sale as a success. None of them ever sold anything.

I spent a few months building an automated trading system: five bots wired together in n8n, a couple of local LLMs making the calls, Trading 212 for execution, Discord for the play-by-play. Every morning my phone lit up with green ticks. Position Closed ✅. Rebalanced ✅. Trade executed ✅. Then I actually read the account. Demo account realised...