Rebalance is stuck at 0%

I am running Couchbase Server 4.1.0 Community Edition (build-5005). After one node crashed and the fail-over option was used, the remaining 8 nodes in the cluster needed to be rebalanced.

But rebalance gets stuck and never finishes. I have tried several times to stop (and after 5 minutes) restart the rebalance.

Now, the rebalance on all 8 nodes never leaves the “0%” mark.

What can I do to analyse and resolve this?