Ticker VXX
From 2009-01-30 00:00:00
To 2018-01-17 00:00:00
Security Type Equity
Market USA
Resolution Minute
Status Resolved

When running a backtest for VXX from any date prior to 1/18/2018 I get following error (using 1/17/2018 as example start date):

"The starting date for symbol VXX, 2018-01-17, has been adjusted to match map file first date 2018-01-18."

Note that on 1/29/2018 VXX became VXXB and then on 5/2/2019 VXXB was changed to VXX.  The necessary files exist in the data viewer so mapping error is my guess.  I did not see the equivalent error in the lean code running locally.