Particle System - Hair: size jittering - messes up scene I have a project where I rendered out one animation. 
Now I see that the palms in my animation jitter in size.

Video here:
https://youtu.be/JowtxnaBUZg

When I examine this effect in Blender I see that it actually is happening and not just an artifact.

So somehow the height of my particle system is being "animated" and I would like to shut it off.

What have I tried:


Looking through all particle settings (I might miss something though)
Looked into Dope Sheet but nothing is in there.
I turned out that I had a Force Field and Wind in my Scene that were supposed to only affect the Smoke, somehow that also affected the Palm Particle System.
I deleted the Force Field and Wind and since I had baked the smoke animation it stayed the same and the palms now don't wiggle anymore.