Defcofx showed one spread but filled my EA closes at completely different prices

I only needed a short time on Defcofx before the execution started feeling wrong.

The screen showed tight spreads and a positive account state, but when my EA closed positions, the fills landed at prices that did not match what I was seeing on the chart. The losses were blamed on slippage, but the close prices looked far outside normal visible movement.

For anyone using automation, this matters. A demo account can behave perfectly, but a live account with unexplained close prices can turn a working system into a loss machine.