multi-IP ARP announcement bugs?

Hi,

I'm writing to report that

a) wackamole failover events seem to lead to an excess of identical  
ARP announcements (using wackamole 2.1.4)

b) wackamole doesn't seem to do ARP announcements for more than 2 IP  
addresses in a group  { eth0:ip1 eth0:ip2 eth0:ip3 ... }. Doing
tcpdump I can see only two of IPs being announced on the new MAC.

Are these known bugs? Any clues on what needs attention here?

Kind Regards,
Mark Blackman
Exonetric