I'll post this over in the wirecast forums later, but a problem I'm having with 4.3 is that my sound devices are mislabeled. What is labeled as my Line In is actually one of the mics on one of the webcams. I didn't discover this until about 30 minutes before a show, so I was hustling to try and figure it out. I kept cycling through the sound devices (this is on Windows) until I found the right one, which was definitely not what the label said.

I also had the recording error out three times during a show until I switched from recording in WMV to QuickTime. Never had that problem before. There was an error code, but considering I was doing a live show, I really didn't have time to make note of it. The actual live stream kept going without a problem.