Please update your software to the latest version(188.8.131.52) using Creative Cloud App or via Help menu -> Updates. There was a buzzing sound issue reported with Flash Pro CC on Mac after the Mavericks update. The fix for this is already available in the latest released update.
Let me know if you still face any issues.
Can you try apply the update manually by downloading and installing the following?
This issue was caused due to Mavericks update and has been fixed in the latest Flash CC update.
Ok look, I know you have to reply to hundreds of these a day, but I already have a discussion for that. Go there instead. I've already tried all this lots of times. Download from firefox, open with Disk Image Mounter, then press install. Then it says 'Update Complete'. Now I run Flash. Most of the time it crashes.
Oddly enough this time it worked.
Damnit Flash, why do you always make me look like an idiot :/
Creative Cloud still says there's an update though. That's what happened all the other times...
So yeah, I have it working, but I'm still going to look into how I fixed it a month ago.
I'm sure there all people out there who can't get the update like I couldn't.
If that's you, I'm still trying to find out how I initially fixed it without the update, but until then, my advice is:
1) If you're file is corrupted, try to download that update from firefox. That's gets the download right a lot more than Chrome.
2) If it has an invalid checksum, don't carry on. Maybe use Ethernet this time, and try downloading it again until it has a valid checksum.
3) From what I can gather, if you're using a crack, try applying it before the update, then do the update. Run it, (the crack should be gone from the update) and apply the crack again.
If those don't work, maybe checking out my other post can help y'all: Error U44M2P7 when downloading/updating (My guy kinda ditched me )