If your market data provider doesn't support historical Bid-Ask data you will see all historical trades on the Bid side.

Eg. Forex and NSE markets don't provide historical Bid-Ask data.

These indicators can be adjusted for historical non-BidAsk data: mzFootprint, mzVolumeProfile, mzBigTrade, mzVolumeDelta. Choose 'Orderflow – Calculation mode' = UpDownTick.

For Forex pairs, we recommend using relevant futures to enable all features of MZpack in your analysis (including DOM analysis). Eg. for EURUSD use 6E futures.
You can get free limited CQG subscription here https://ninjatrader.com/FreeLiveData

Hybrid mode and Indian Market (NSE)

Indian Market data providers (eg. Accelpix) don’t translate historical Bid-Ask data so far. Indian users must set the value for ‘Orderflow – Calculation mode’ = Hybrid. The Hybrid mode uses UpDownTick calculation for historical data and BidAsk calculation for real-time data, which is 100% accurate. Read more.

Note, when you reload Ninja script, all collected data are becoming HISTORICAL and UpDownTick mode is applied. All prior live data-based (bid/ask) indicator's plots are more or less different now. We don't recommend doing this during the trading session. Open Ninja at the beginning of a trading session if you need 100% accurate order flow.