Not Connected if any Redis node is down

Hi!

I have a two-node master-slave redis system setup. If I stop the redis server on either node the Redis Object Cache plugin loses connection instead of connecting to the remaining node.

In the scenario, I have stopped the redis on the local host. With a test Predis client, I can still connect and read from the replica but the plugin says Not connected although the other redis server (slave) is still intact.

Error in diagnostics:

Status: Not connected
Client: Predis (v2.0.3)
Drop-in: Valid
Disabled: No
Ping: PONG
Errors: [
    "Connection refused [tcp:\/\/127.0.0.1:6379]"
]

My related configuration in wp-config.php:

/* REDIS CONFIGURATION */
define( 'WP_REDIS_CLIENT', 'predis' );
define( 'WP_REDIS_SERVERS', [
    'tcp://127.0.0.1:6379?database=0&alias=master&role=master',
    'tcp://192.168.40.105:6379?database=0&alias=replica',
] );
define( 'WP_REDIS_TIMEOUT', 1 );
define( 'WP_REDIS_READ_TIMEOUT', 1 );

Can you please help me with this? Is this how it is supposed to work?
My goal is to use Redis Object Cache connected to this two-node setup. If the master goes down the replica should be able to keep serving the cache.