Only one misc_check possible (several configured per VIP)

Hi,

I've got a weird experience here (snippet from config):

virtual_server 12.34.56.78 80 {
     delay_loop 20
     lb_algo wlc
     lb_kind NAT
     nat_mask 255.255.255.0
     persistence_timeout 0
     protocol TCP
     alpha

     real_server 10.0.0.100 80 {
          weight 1
             MISC_CHECK {
                 misc_path "/root/bin/check_hosts.sh 10.0.0.100"
                 misc_timeout 5
                 }
             }
     }

     real_server 10.0.0.101 80 {
          weight 1
             MISC_CHECK {
                 misc_path "/root/bin/check_hosts.sh 10.0.0.101"
                 misc_timeout 5
                 }
             }
     }

     real_server 10.0.0.102 80 {
          weight 1
             MISC_CHECK {
                 misc_path "/root/bin/check_hosts.sh 10.0.0.102"
                 misc_timeout 5
                 }
             }
     }
}

However, only the first appearance is being used (10.0.0.100); if I 
comment out .100, it works for .101, but not for .102. If I comment out 
.101, it works for .102...

I verified this using tcpdump - no packet going to the second or third 
rs configured.

Any idea what could cause this? Tried 1.2.13 from CentOS base repo as 
well as a self-built 1.2.19

Best regards,

Bernd

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