What are the bugs and their workarounds in Flash Player?

It seems a lot of questions for Flash/Flex are related to bugs in the Flash P开发者_如何转开发layer. What are some of the bugs and what are the workarounds. It would be nice to compile a list of known bugs and common workarounds.

Example: In Flash Player 10 the DoubleClick event does not trigger in Firefox. The workaround is to avoid using the DoubleClick event in code.

The SWFLoader memory leak was instrumental in our choosing another platform for our app. I'd love to learn the workaround/fix.

bugs.adobe.com is the place for Flash Player and Flex bugs.