The --config-file option does not work in sysbench 1.1.0

[Likkey]

I have encountered an issue with sysbench 1.1.0 where the configuration parameters specified in the configuration file using the --config-file option are not taking effect. I have specified the following configuration files:

db-driver=mysql
mysql-user=test
mysql-password=test123456
mysql-db=testdb
table-size=1000000
tables=10

or

memory-block-size=1M
memory-total-size=90G

I am running sysbench using the following commands:
sysbench --config-file=testconfig.cfg /usr/local/share/sysbench/oltp_read_write.lua prepare
or
sysbench --config-file=config.cfg memory run
I have confirmed that the path to the configuration file is correct. However, none of these configuration parameters seem to be taking effect when I run sysbench using the --config-file option. On the other hand, if I specify the same parameters directly on the command line, they work as expected.

Does anyone know what could be causing this issue?