Flash Player for Google Chrome is currently developed jointly between Adobe and Google. Because of this relationship, we would like to encourage users that are encountering issues with Chrome's Flash Player to report bugs directly to the Chromium database. You can do this by filling out the following form:
Crash ID if applicable (visit "about:flash" in Chrome to find the appropriate crash ID.)
If you are running into a video or 3D related bug, please navigate to "about:gpu", save and attach this information to your bug report
Once added, please create a new forum thread (or bug report at bugbase.adobe.com) with your Chromium bug URL/number so we can follow up internally.
Please be aware that Chrome Windows now includes a new, more secure, plugin platform for Flash Player (PPAPI). When troubleshooting your problem, we recommend testing against the older NPAPI version of Flash Player. Steps detailing this process can be found here: Enable system Flash Player in Google Chrome | Windows | Mac
Finally, you might also consider testing your issue out against the Chrome beta and Canary (alpha) builds to see if the problem has been resolved.