Just discovered this post and since no ones answered I'm wondering if you're still having this problem ?
The only things I can suggest are, are you on the latest version ? V.2.3.1.6 is that most recent. It still says public beta but it's been out for almost a year and I've never had a problem installing their betas on release.
There are also a few data/audio updates and fixes that you could try if you haven't already installed them and thirdly perhaps trashing & rebuilding your databases once you're completely up to date.
Also, which cymbals in particular are you having issues with ?
Steve