I just started using Quantconnect a few days ago and as I was backtesting my first algorithm I noticed that it only runs the test for this month, April 2020.  And whenever I want to set the start date further in the past, March or Februrary, I get this message :


The starting date for symbol ABC, 2020-03-01, has been adjusted to match map file first date 2020-04-03.

What should I go so that I can set any start date I want?