Backtest "Mismatched charts errors..."

What does the mismatched charts errors mean and how does it affect the validity of the backtest?

Mismatched chart errors happen when data isn't consistent.

Example: on a 5M chart, I have the following:

Open: 1.0000
Close: 1.1000
High: 1.2000
Low: 0.9000

Using 1M bars during that 5M interval, the first 1M bar actually opened at 1.0010, and the last 1M bar closed at 1.1500, or something to that effect.

This generally happens when you mix candle data from different brokers.

Hmmmm, I'm assuming it's all from FXDD for the test period since the account has been live for years. I'll just let this puppy dig and see what happens.

Thanks RR