I am having inconsistent problems with Spark List with the latest download of Air 2 and Flash Builder 4. I am using a MacBook Pro w/OS X 10.6.4.
The most common problem is with the scrollbar, it will not show. I can set the scroll policy to on, and it does show, but it will be disabled. If I change it from a List to a DropDownList than I have a workable scrollbar. Also, with Spark List the border.visible inconsistently works.
Along with Spark List issues I do have inconsistently working auto-fill.
I have reinstalled the latest sdk's for FB and Air. Have tried new workspaces. New projects have the same issues.
In my logs I do have this error:
!MESSAGE Warning: Detected recursive attempt by part com.adobe.flexbuilder.editors.mxml.MXMLEditor to create itself (this is probably, but not necessarily, a bug)