I try to write my first strategy.
Use a fan of the three SMA (3,9,72).
In the strategy tester, following problem ...

The strategy runs for a period of 20 ticks.

In the handler OnBar calculated the necessary SMA (3,9,72) are defined
terms of opening / closing the order. To verify that the strategy in the
visualization window, manually added the appropriate indicators.

Here is the problem!!!

Manually added indicators show the same picture. Below are highlighted
in red, output computed values of the indicators.

They are different!!!

In what could be the problem? In the wrong use of the tester, in the
wrong method is called the indicator calculation. Using tick period?

Please, help understand!!!

Indicator calculation results differ, because the strategy works with time aggregation candles, but chart with tick bars
for indicator calcualtion on feed see:
https://www.dukascopy.com/wiki/#Indicator_Calculation/Calculate_on_price_feed_by_candle_interval
for work with feeds see:
https://www.dukascopy.com/wiki/#Chart_feeds
for indicator value chart-to-strategy comparisons see:
https://www.dukascopy.com/wiki/#Add_indicators_on_chart/Include_in_OHLC

Thank you so much!

The second and third links directed to the right path. The cause of errors - superficial reading of the documentation ... it has now become clear that it should be organized!