I can offer to assist you with determining what is at the core of the issues you are having, and others in the forum would also assist.
There ARE bugs in Sonar Platinum, and there always will be. The thing that a couple of folks said above is that because the issues you are having are not reported by anybody else, it is highly likely that whatever IS going on with your system is some weird thing that is repeatedly triggered by whatever settings or interactions, or maintenance, or plugins, or Sonar Platinum features, or Sonar Platinum functionality interacting with some aspect of your system in a manor that is different than what was taking place between X3e and the same system and same plugins.
I DO believe we can get to the bottom of this, if you can engage with us in doing some examination of your system itself, as well as what steps you are in the middle of performing when your issues strike.
If you look at the bottom of my post, or some of the other members, you will see I have added my computer system and environment specs to my forum profile's Signature and Comment section. It would help folks for this issue and any future issues you may post about, if you too were to take a couple minutes to edit your forum profile to add the info about your system.
You can get to that section of your profile by clicking up at the top right of this page on the user_control_section, then clicking on the left of the subsequent window on the Signature and Comment tab, then entering your specs, also making sure to check the box below that section that tells the forum software to Always Attach Signature to All Posts (or however the exact wording of that is).
Additionally, I have a few questions for you:
1. What driver mode are you running in Sonar?
2. Is your Windows up to current maintenance levels?
3. Have you tried opening the failing project in Sonar's 'Safe Mode', and skipping the load of any of your 32-bit plugins? (just for diagnostic purposes, to try to see if them being present in Platinum is causing problems - after testing that, close out without saving project)
4. Have you checked Sonar Preferences between X3e's settings and Platinum's? (just wondering if something hadn't transferred properly)
5. Have you considered doing BOTH a Reset and a Full Scan of your plugins? (sometimes that clears up weird plugin problems with instability and other manifestations)
Thanks - we'll do our best to help get this figured out with you :)
Bob Bone