Wired Intelligent Edge

Anyone know that VRRP duplicate master error are coming in Hp procurve 5412zl core switch which is already active and behaving as VRRP vlan master even checked that in all other switch, there is no duplicate VRRP master in network. What is the cause of this and solution?

Attachment(s)

vrrp errors.txt   703 B 1 version

we have some many switches and loop- protection is enabled in each switch with no-disable . Means, It will not disable anything but log should come if loop is there in any switch . i have checked that alll access and cores switches has not able to found loop even loop-protector and mstp is working in the setup.