I've just noticed in my AIR application that redo is not working. It also seems that there it only is going back one step (but sometimes two or three).
<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx">
<fx:Declarations>
<!-- Place non-visual elements (e.g., services, value objects) here -->
</fx:Declarations>
<s:TextArea horizontalCenter="0" verticalCenter="0" />
</s:WindowedApplication>
I'm using CMD + Z for undo and CMD + Z + Shift for redo. I'm sure this was working at one point. Maybe it was only in the browser?
I'm using Flex 4.6 and AIR 3.6. I'm using Mac 10.10.5. I'm using Firefox 40.3. I also tried it in Safari.
Undo and redo work correctly in the text fields in both of those browsers using the same shortcut combinations listed.