In one of my accounts I hold the security FDGRX, Fidelity Growth Company. On 8/10 Fidelity issues a 10-1 split of the security. Of course Fidelity listed the transaction on my account as a dividend and not a stock split. I manually updated the transaction within Quicken and when I did that the price for the security on some of the days prior to the stock split changed resulting in a chart looking like this,

Upon further investigation I looked at the security price within Quicken during the drops in the chart and noticed the price was incorrect.

If you take a look you will notice that the closing price changes between 7/12 and 7/13. There is no reason for this change and the closing price on 7/13 was 208.09 but the listed price is 20.809. This is a shift of the decimal point by 1 digit to the left. I noticed this for all the days that the chart is incorrect. This is the same thing for the quick dip in the chart at the beginning of July. Look at the security detail from 7/5 - 7/9 below.

While I know that all I need to do is update the security price on those days I want to know why this pricing changed after the I entered the 10-1 spilt on the security on 8/10. Am I hitting a bug with stock splits?