Charts 1 month and longer not accurate

First, love the updated iOS app with ability to sort equities by % gained / lost, thank you! The more modern chart styling is awesome too. One issue/bug though:

Chart durations 1 month or longer are not accurate. Meaning if you look at the furthest to the right / most current timeline, the line graph is no where near where it should. The price of Chevron for example was sitting at 77.00 and the 5 day chart would have the line right there and when you hover it it could concur. But if I did 1 month it would show the stock at 60 something. This has been happening for a couple of weeks now.