I have solved the murder mystery of why wc3's later videos have video corruption. It's due to recordings on the new system using the official version of OBS which is still, to this day, bugged and doesn't support i444. Somehow I had been lead to believe the severe bugs had been fixed but they weren't. You still need an unofficial version that changes 3 simple lines to use the most important setting in the entire fucking program.
Additionally, there will be a small format change in upcoming productions. I will be transitioning from NeroAAC to Vorbis for all related audio releases where applicable. Also, I've phased out the Audition AAC encoder for a variety of reasons, not the least of which it being inferior to all other AAC implementations.
The net result will be much more accurate audio, especially in higher frequencies, and perhaps an unnoticeable increase in file size.