Thinking about it, this would be a good opportunity to have the maintainer of the OSX version use the latest FS-UAE release in the new version of Amikit. Its so much better when set up correctly.
I'll look at your video and see if anything stands out.
EDIT:
Try setting all those auto setting to a hard value. I have nothing set as Auto on mine last I checked. I'll see what they are when I get home and post a video as well if I have a chance.