Caution: Wrong Spread in MetaTrader 5 Strategy Tester



I am testing on MetaTrader 5 Strategy Tester based on real ticks. And I see that on some brokers the spread in Strategy Tester is based on their Zero Account conditions (spread almost 0), but testing on the Standard Account (without commission) the spread is much higher than on Zero Account. But the Strategy Tester gives me the spread of the Zero Account.

I could see it on two brokers: FusionMarkets and ICMarkets. While on FBS it is showing correct. 

Have anyone experience same issue?

The tester is working correctly. The trade server keeps the tick history of only one trading account condition. Therefore, even on a standard account, when requesting a tick history in the terminal (not in the tester), you will receive a tick history not from standard conditions