Hydrachain for 5+ nodes

[shimoji127]

We are trying to use 5 or more servers for Hydrachain but they do not work.
Would anyone help us?

We are now working for a BlockChain project using HydraChain product.
The system works with 4 (four) servers.

Now we have increased the number of servers to 5 or larger, however, it does not work.
We now have 8 servers totally; It works fine with any combination of 4 servers,
but not 5 or more.
Let us denote the shell script for setting the servers below

Would you please let us know what is wrong and what is the correct
script to work with 5+ servers?

---

#!/bin/sh

node_num=$1

LOG_FILE=/home/bcadmin/log/hydrachain.log

enode=316d88516ff96ed22251f178684c6ea296d224be06e7ee301d363abd03aa9ad757b0fb647ad726e2367750e0f30c7240b010efe87a1ae9c5e9896f78e8827aff
ip=192.168.0.132
port=30303

BOOT_NODE="enode://$enode@$ip:$port"
node_no=hostname | sed 's/Block0//'
node_no=expr $node_no - 1

echo "BOOT_NODE: $BOOT_NODE"
echo "NODE_NO : $node_no"

hydrachain -d kensho --bootstrap_node $BOOT_NODE -c "jsonrpc={corsdomain: '*', listen_host: 0.0.0.0, listen_port: 8545, rpcapi: 'eth,net,web3,personal'}" --log-file $LOG_FILE runlocal --num_validators=$node_num --seed=42 --node_num=$node_no &

---

The results so far are:
BC 1 to 4 (4 servers) good
BC 5 to 8 (4 servers) good
BC 1 to 5 (5 servers) no good
BC 1 to 6 (6 servers) no good
BC 1 to 8 (8 servers) no good
BC 1 to 4 with No.4 intentionally crashed (essentially 3 servers) no good

If anyone provide us any suggestion or advice, you shall be most appreciated.

Thank you.