lollipop custom bootanimation in /data/local topic

is it that in lollipop 5.0 custom bootanimation in /data/local is not allowed any more?
i tried with a bootanimation.zip file that worked in kitkat 4.4, and the stock bootanimation was shown nevertheless..
(phone rooted and bootanimation.zip permission changed to 0644.. the file worked in nexus 4 kitkat so its not currupt..)

any hint on the issue? tia..
(this happened in my nexus 4 phone, but a user of nexus 5 also encountered this issue, so i guess i could post here for an answer..)