vcs Multicast IP address

Hi,

installed the A10 V6 software in the Vpshere.

VCS issue:

After new build  on A10 6.0.3 P2 the default multicast IP address (VCS config) is 224.0.1.210 (on V5 its 224.0.0.210) .

VCS multicast IP address is 224.0.1.210. and it cause HA issue the standy by box become Standby-vMaster1/2>

So we add the multicast IP to 224.0.0.210 . it started working as active/standby.

from v6 the multicast IP is changed to 224.0.1.210 ?? and why this multicast IP address is not working .