Why Doesn't MT5 synchronize imported third parties tick data?

[landmeister]

As far as I know MT5 was specially designed to improve backtesting, but importing tick data from external sources simply doesn't work due to lack of synchronization. Could someone please tell me how to fix it?

Thank you in advance.

[landmeister]

Any hint?

[landmeister]

Can someone help, please?

[Sergey Golubev]

https://www.mql5.com/ru/forum/304554 

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https://www.mql5.com/en/forum/13348