After an optimization is complete you can display, within TradeStation, the trade series for any individual. To do so, you can type in the input values by copying them from Optimax. If there are many inputs, simply type the generation and individual into the strategy inputs with iteration = 0, as shown below.
Setting the generation and individual numbers in TradeStation to see the trade series.
In this state, your strategy calls Optimax to obtain the input values, and displays the trade series that created the equity curve. If the curves do not match, ensure that your chart uses the same begin and end dates as it did during the optimization, and that the data hasn't changed from TradeStation.