Changin Scale Causes wavy lines

Premiere Pro CC
I'm working w someone else's original cut getting ready to lay to tape (required by client). To create a zoom effect the other editor keyframed the scaling on quite a few shots. For some reason when it is played in the time line it's causing wavy lines (almost a rolling shutter look) in the back ground of the shot. The lines are always in a bush or tree in the back ground, and not on the main subject, but is very noticeable.
I'm working on a late 2013 Mac Pro w/ up to date Creative cloud.
This type of issue is on multiple projects, and different types of camera footage. There is no distortion on the raw footage, or if the shot is placed in the seq w/out the scaling changes.
Any help would be appreciated.

What happens if you get rid of this line?
params.add(new InterpolationBilinear(8));

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http://ezinearticles.com/?Lets-Resolve-the-Frequent-Troubles-of--LCD-Monitor-Our selves&id=82112
"Wavy lines on the screen:
In some instances you may encounter wavy lines on the screen. These are usually 1/4" thick and move in a vertical motion. This is caused by a noisy electrical feed from a wall outlet. If you change your vertical refresh rate under display properties to 75Hz this effect should disappear.
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I bought a Samsung SyncMaster 906bw as a second
display for my 24" iMac. I have it connected via the
included VGA cable. The displays resolution is at
1440x900 with 60 hertz.
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Changin Scale Causes wavy lines

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