Backtest numbers and scan signals are different

So whenever I do a scan based on my afl, it picks up my signals. I cross check these signals with the charts and it's right. However, when I backtest with the same afl for the same time period, the exit prices are considerably higher on the backtest than the scan signals, and I am finding that the exit prices do not correlate with the charts. Is there any reason why this could be happening? Cheers

3 posts were merged into an existing topic: Basics: Scan shows signals, Backtest shows trades, was: How to get correct signals