US Saturn VA1 video issue

I've got a US Saturn VA1 that I received dead, but after recapping it, it is mostly fine, except that some graphics flicker and starting today, where the cubes should be on the main menu, there are now orange/reddish balls. You can see what I mean here: - YouTube

I've tried reflowing the VDP1 and VDP2 and associated memory chips, but that didn't help. It could still be a VDP1/2 issue, or something with the capacitors, or something else entirely. I'm hoping that someone else has seen something like this and can help me narrow the possibilities of what I should be looking at.
 

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