I just installed the new update on an 27" iMac Retina with 5K Retina display.
As soon as I try to do any scaling on an image, I am getting a stuttering playback where the image size jumps up and down with each frame. Removing key frames and changing key frame types seems to have an effect on it.
It's currently unusable. Is there a way to downgrade the install?
You can install CS6, CC, and CC 2014 alongside CC 2015 through the Creative Cloud app.
What zoom setting do you have on your comp panel? What version of Mac OSX are you running? What kind of image are you trying to scale?
send a screenshot at least
I am running Mac OS X 10.10.3
4G Intel i7
16 GB memory
AMD Radeon R9 M295X 4096 MB
Problem was with AE CC 2015.
I was simply trying to scale HD images. I solved the problem by downgrading to AE CC 2014.2. Now it works fine.