I have a video series I make for my YouTube channel, and have a very specific style I am going for. I want it to feel similar to the old Max Headroom films from the 80's and 90's, and also run the videos through a VHS player to make them authentically old school 

Problem is, in oder to achieve this effect in the first place, I want the character in the video to move at a slower framerate relative to the background 

My footage, sequences and animated backgrounds all run at 30fps, and my character in the videos is supposed to run at 12fps to contrast with the smooth background

My character has a black mask on his glasses, which I have exported (with a color grade) at 30fps, then brought back into the timeline

In order to get the 12fps to work properly, I use the Posterize Time effect on all the clips where my character is seen

Problem is, when there is a transition between two clips, one to two frames from the previous clip are seen, causing a jarring ghosting effect when watching playback, and annoying ghost frames (See attached video)

How I am currently solving the issue: go to the affected frames, make a cut, turn off Posterize Time effect. Pretty tedious and annoying, but works

What I have already tried: 

* Changing Time Interpolation to either Frame Blending or Optical Flow
* Changing Fields from No Fields to Upper Field First 
* Render Effects In to Out
* Render In to Out

If someone could help me find a way to fix this ghosting issue and find the proper settings so I don't have to manually adjust it every time it pops up, that would be greatly appreciated! 

How do I avoid ghost frames when using the Posterize Time effect?