Video publishing choppy at transitions

Hey Katie, 

Gerald is trying to help, but in the mp4s he has provided I am still finding glitches with no explanation as to why they are happening or how I can prevent/fix them. He suggested I reduce the dimensions to 720 and step back the video quality but I still am exporting mp4s with glitches (latest attached with a slide flicker at 2m 21s and 4m 50s - then I stopped watching). 

This is the type of project I will be working on for the next couple months. Important questions at this point are:

1) Is there something in I am doing in the build?
2) Is it a known and unresolved issue from articulate?
3) Is there another way to get an export to come out clean consistently?

I am at a loss on how to provide a finished product to my clients even though the work is done. The project was due yesterday and I would love any additional assistance you could provide. 

Thanks, 

Jay