I've heard of issues with wav format in PP from before.
I'm gonna try converting all the audio to AIFF
Those are the files that have had issues in the past.
Can't say for sure, just something in my brain is making me think I've read in some forums about people having an issue or 2 with wav. In any case, the fact that I am having such issues despite, I'd say, my very thorough troubleshooting attempts, is leading me to explore other options, even those which might have caused issues in the past, like AIFF files. I have never had any problems with them personally.
Thank you for your reply, but it didn't really help me. Do you have any ideas about what might be the issue?
Additional steps taken:
Attempt to rebuild edit with merged clips
Reinstall Graphics card drivers
Update to 6.0.1
After your update to 6.0.1, have you tried to replicated the merged clips problem in a new project and sequence? I'm working with merged clips currently and not seeing anything like your describing. I'm running 10.7.4, CS6.0.1 on a MacPro4.1.
Expanded audio has been a cause of problems for me.
I can't drag out a clip, use alt+click to move it independently, or select or razor a clip using the expanded audio but only by clicking on the video track or unexpanded audio.
This is with 6.0.1 with mixed format - HDV and AVCHD in a multicamera project.
Another little issue is that the multicamera monitor won't expand using the accent/tilde key but has to be dragged out manually which is not as it occurs in some of the video tutorials.
Given the size of the update patch to being it to 6.0.1, I think this was close to still being a beta when released.