Interpret footage as square pixels?
Can you please explain this? I am still relatively new to After Effects.
Instead of rendering out of Ae, why not simply Dynamically Link
your composition into your Premiere project?
File > Adobe Dynamic Link > Import After Effects Composition
The stretching still happened when I linked it, I fixed the problem by adjusting the size in premiere as close as I could. I know there is an eayser way to do it but, I don't know it.