on_error function is not called

[HishamKassar]

Describe the bug
I was trying to get the error when something happened in a handshake or when the server is not reachable, but it seems the function is not working properly

here is my code:

To Reproduce
hub_connection = HubConnectionBuilder()
.with_url(hubUrl,
options={
"access_token_factory": lambda: token,
"skip_negotiation": True,
"verify_ssl": False
})
.configure_logging(logging.DEBUG, socket_trace=False)
.with_automatic_reconnect({
"type": "interval",
"keep_alive_interval": 10,
"intervals": [1, 3, 5, 6, 7, 87, 3]})
.build()

    def on_connection_closed():
        print("connection closed")
        connection_closed = True
        print(connection_closed)
    
    def on_connection_error(data):
        print("An exception was thrown closed")
        print(data)
        callback(False)

    hub_connection.on_close(on_connection_closed)
    hub_connection.on_error(on_connection_error)  

    while True:
        if connection_closed:
            break

Expected behavior
I'm getting all errors on debug level, but I want to get the error from the function on_error and this is not happening. so is there any issue with my previous code?