view returns badarg after rebalancing out a node ( rebalance failed first time with bad_replicas ) but succeeded

Client-side error-report for user "Administrator" on node 'ns_1@10.114.237.71':
User-Agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_2) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.75 Safari/535.7
Subset of nodes failed with the following error:
[

{ "from": "http://10.34.78.23:8092/_view_merge/", "reason": "badarg" }

,

{ "from": "http://10.39.87.138:8092/_view_merge/", "reason": "badarg" }

,

{ "from": "http://10.99.35.239:8092/_view_merge/", "reason": "badarg" }

]