I have been working with Adobe Flex Builder for building Flash applications over a year. Recently I tried a few beta SDKs - 3.4 and 4.0. After playing arround with these SDKs and returning to a stable one (3.2) - Flex builder started causing some problems with autocomplete and debugging:
Autocomplete - when selecting class members from autocomplete - it usually clears all standard library import statements from the class. I started copying and remarking these import statements for retrieving them back after they are deleted.
Debug - it won't stop on most breakpoints (it used to before changing SDKs). Mostly it ignores my breakpoints.
I would love to hear any ideas about the cause and possible solution to these problems.