Hi! Before purchasing, I was testing brief clips from PAL video converted to NTSC (720x480) and saw no problems, so I then bought the software feeling confident.
Overnight, my first two full videos upscaled to 1080 was attempted.
Watching the next morning to confirm, the scene wobbles to and fro for some scenes and it’s disconcerting.
Even previews of suspect scenes look fine, it’s just the final render that throws things off and it’s bizarre.
I’ve since re-rendered in fullframe and auto-crop modes and getting the same swaying. With deblur and stabilization, 1 render is 8 hours appx. Without these, it’s about 5 hours.
I’ve even disabled all Stabilization and Motion Deblur options.
I’ve tried Interlaced Progressive, then Progressive for one render as well.
Nothing makes a difference.
To make sure I was not going nuts, I re-viewed the source material ripped from Handbrake or Wondershare. It does not do the nausea-inducing swaying.
I did initially notice, when ripping from the ISO via Handbrake or Wondershare, having the same problem - this I resolved by using AV1 as the codec. The video remained stable at that point. But when using Topaz to upscale to burn to blu-ray, MP4 and MKV are my only options and the swaying problem returned.
The scenes that don’t sway back and forth are terrific, but the swaying does induce nausea. 
Has anyone else tried upscaling an NTSC conversion?
Should I use “2x” instead of “1920x1080” as the output format? Might that fix the problem? I’ll try that this morning…
