Hi,
If I set in config keyPrefix. Some commands stop work(it described in ioredis docs: https://github.com/luin/ioredis/blob/master/README.md#transparent-key-prefixing)

Step to reproduce:

• create NodeResque.Queue with not null options keyPrefix
• create scheduled job
• call await queue.timestamps()

Methods that stop working(maybe not all):

• queue.timestamps()
• queue.locks()
• queue.stats()
• scheduler.checkStuckWorkers()