Dropping travel-sample while it is still loading data causes data load to get "stuck"

Summary:
1. I created a 3 node cluster
.90  - data service
.217 - data service

.215 - data, query, index

2. Install travel-sample bucket
But while it was still loading,  I dropped the bucket (because I realised I needed beer-sample instead)
But as soon as I dropped it, the data loading was "stuck". This meant that I would no longer be able to failover and remove any node, or add new nodes and rebalance the cluster. 

I could not find any error messages, but I think the issue could be because the bucket got dropped before .215 node was aware of bucket-info.