I've stopped waiting for that and together with the MQTT client problems I decided to give a shot to OpenHAB. It looks much more complicated in the beginning, but it is quite straightforward if you do it step by step.
Nevertheless, I'd like to thank Mr. EasyIoT for this great platform, which helped me a lot when I was starting with my smarthome project and I wanted quick results. If I had to start with OpenHAB, it wouldn't have happened, so thank you and the best of luck for the future!