got wrong tick data when download market data from bitmex

Hello

What kind of problem?

I think I've got what you mean. Bitmex provide very deep history including tick data

[img=113563]1e715dbde54966f035b8d4846903888f.png[/img]

So maybe you set From filed for Tick data and Bitmex started to download from 2017. You can specify exactly From date to arrange the beginning of necessary history.