Memlock is stopping node from starting after update

Elastic Stack Elasticsearch
1

Hi, I updated from 5.5.2 to 5.6.4 and after the update my node doesn't want to start with memlock = true.

getting this in my log file:

Unable to lock JVM Memory: error=12, reason=Cannot allocate memory

/etc/security/limits.conf

elasticsearch - nofile 65535
elasticsearch - memlock unlimited
2

I tried to setup a new node with 5.6.4 and I cant start it with memlock = true. So I assume something changed in 5.6.4 regarding memlock?