after many add/remove server operations, the second node gets into a downed state

beta1.6.0b-52
centos 5.4 32bit
2 node cluster

node1 = 10.1.4.199
node2 = 10.1.4.206

1) add a second bucket and load up a small amount of data to the default and new bucket
2) add 2nd node and rebalance
3) remove 2nd node and rebalance
4) repeat steps 2-3 100 times

This was run over night so at some point during this the state of the system may have gotten messed up.
At this point the cluster has 2 nodes in it

5) Go into the web gui and remove the 2nd node and hit rebalance

In the web gui the 2nd node shows "down"
In the web gui logs the following line is repeated many times
NorthScale Server has started on web port 8080 on node 'ns_1@10.1.4.206'.

6) Failover 2nd node and rebalance

The one node cluster seems to be working fine, however the 2nd node isn't working. The 2nd node seems to have the erlang management system running, however the web interface is not accessible, and memcached/moxi are not running.