I have a project in X3 on one machine (Windows 7 pro). I saved it as a .cwb file and tried to open it on my other machine running Platinum (Windows 10). It opened the tune, but everything is screwy. Nothing is at the right place on the timeline, Audio from one track is now on a different track, some audio just isn't there... it's a mess. I've never tried to do this before. Any ideas what I'm doing wrong? Thanks in advance for any advice.

Try saving as a .cwp

Thanks for the reply. I first tried to save as a .cwp but most or all of the audio was missing, hence the attempt at a bundled file. Also, I transferred several projects from the old machine to the new one last night as .cwb files and they opened no problem. It's just that one massive project that won't play nice.

To ensure all of the audio is included, do a "save as" of your project to a folder, thumb drive of your choice.
Make sure "Copy audio with Project" is checked in the Export dialog box.