I never use that button. I just click on All Purchased, then click Greyhound or Horse racing calendar, find the day's events I want and select All Markets, where the events purchased for that day will be downloaded after clicking the download symbol. Then click the other symbol to load win and/or place markets into My Markets. Occasionly a few markets are missing at the first attempt, but all you need is to find those in red print, click on each one to download and reselect by clicking the box.