Issue with Waves v9 in PT10HD

[dannymeltzer]

Hi,

I have had an issue that is creeping up more often lately, where plugins that I have on a track in PT will show active but are not actually operating, the audio is not being affected by the plugin. Sometimes the plugin will be working and then it will 'kick off' with no sign other than that the audio is not being affected. The plugin will not be in bypass, it shows like it's working, but the audio is not affected. Sometimes if I restart PT they will be working again. This has been happening with Waves V9 plugins, RTAS format, usually the Renaissance ones that I have been using regularly.

I am running PT10HD on a Quad Core 3.2 ghz Mac Pro under OS 10.6.8. Do I need to move up to OS 10.8? I have been reluctant to move off of 10.6.8 until I am forced to since it's so stable and usually changing OS's opens a can of worms with Pro Tools.

Any advice is appreciated, thanks!

Danny