View changes happen when all responses should be rejected during load testing scenario

Environment

Indy-node 1.6.71 (stable)

Steps to Reproduce:

1. Add a user without a role to a ledger, seed = 000000000000000000000NotTrustee1.

2. Execute perf_spike_load.py script with the attached config file (update genesis file in config) on a pool of 25 nodes.

3. Wait until the script is executed (1 hour).

Actual Results:
There were View Changes and a lot of 307 errors (timeout)

Additional info:
Logs are in logs/indy-1653 folder on evernymr33 server.
In order to get logs:

pscp ev@evernymr33:logs/indy-1653/Indy-1653.zip <dest folder on local>