How to stop the background flutter?

Topaz Video AI General
1

Any ideas? This was

  • de-combed with handbrake Bob Yadif
  • de-noised with Topaz (can’t remember which)
  • Changed to 24fps with Topaz (whichever Default_4_apo8 is)
  • and finally upscaled 4x to 7680*4320