My alerts get reversed when adding them!

When adding alerts, they can sometimes be shown in a different order than you added them: this is how the iOS operating system handles alerts and is not harmful in any way: the alerts will still go off at the time you set them.

When adding alerts, the iPhone operating system (iOS) displays the alerts in random order: you can also see this happening in the Apple iPhone calendar app.
The alerts are, of course, still executed at the time you said them to go off.