Vector image has noticeable line after continuously rasterizing

I have used the puppet tool in the past and I know that it has a tendency to leave an unwanted line around certain areas, but I get it mostly when the puppet I am using is in a precomp that changes position. I used the puppet tool to bend this vehicle forward a bit to make it look like a sudden stop. Without the continuous rasterization the truck looks very blurry, but as soon as I rasterize it the line shows up. I have since removed the puppet tool to all layers but this line remains. Where the layer begins its motion there are no errors, but as it moves into place it sorta runs through this line.

I have given up on using the puppet tool with moving vector images like that because it causes way too many problems, but I'm not sure if this is something left over from the puppet tool or something entirely new.

Any ideas?