I need help on fixing out of range error in indicators and double check if fomulas are correct.

I need help with a specific issue in NinjaTrader 8. I'm using Strategy Builder to automate my setup, but it's ignoring some of my conditions for shorts, and not placing long trades at all. I've set up many other Strategies, and never had issues like this, so I suspect the cause is the indicator I'm using, which is the Ichimoku Cloud from the NT User App Share. So what I need is a new version of the indicator that works correctly with Strategy Builder. Ichimoku has several elements, but I only need the Chikou (Lagging) Span, which is a 1 period EMA of the closing price from 26 bars ago. In case you're wondering, I tried just using a EMA with those settings, and it worked as an indicator on the chart, but the same settings in Strategy Builder give completely different results when printed on the chart. Please let me know how long it will take, and what it will cost to recreate the indicator.