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.

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

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