I'm going to try using the modular gapps with ayysir's build to see if removing the default camera might be causing the issue, but i doubt it. I might also try pulling the system directory from notta's build and comparing it to ayysir's.
I'm on PA 4.3 BETA 3 - ayysir build with pa-gapps stock 503 and am getting the snapchat camera stretch again. I tried PA 4.3 BETA 3 - notta build and the camera stretch is gone, unfortunately notta's builds don't have hover which is one of the main reasons I chose PA vs CM11. Any suggestions?