I too verified the problem with CentOS 7.1 Hypervisor and CentOS 7.1 VM

BTW: I find the below window somehow misleading when you try te resize the memory of the vm
https://drive.google.com/file/d/0BwoPbcrMv8mvbUw2VnpCMTNNQlU/view?usp=sharing

Gianluca