Hey I've been using Cakewalk since Sonar 5.  I'm now on X3, and not giving it up until absolutely necessary.  I have a brand new copy of Ozone 8 and Neutron2.  I can save setups in the plugins (individually), but when I shut down Sonar and start  it up again all Izotope settings in each of their plugs revert back to the default settings (which is nothing).  So every time I open a project I have to reload all instances.  All my other plugs save and load just fine. I suspect it's an Izotope problem....I have a ticket called in with them....just thought I'd check in here to make sure I'm not missing something.

I have O8N2 but have not seen your issue. All settings are saved and are exactly as I left them when I re-open the project. I have Platinum though, not X3, so I'm not sure if its something X3 specific????

I don't have Ozone 8 but when I had other plug with this problem, it was the vst 3 version, and using vst 2 solved it for me.

Thanks I'll give it a try.