I don't really know what could be wrong with your configuration. I see you used the latest lirc source code. One of the threads I read while trying to resolve the MCE remote problem warned about installing the latest lirc beta version, as it could contain code that was not supported under the current LMCE version. For this reason, I downloaded the same lirc version 0.8.2 (official release) source code used in LMCE 704 and then overlaid the lirc_mceusb2 module source code version 1.37. Thus, only updating the small part of lirc required to support the MCE remote with the SMK receiver. Follow the instructions I wrote in my thread.
Again, I am not sure if this is your problem, but this is what worked for me. Support for the MCE remote and SMK receiver is supposedly included in LMCE 710, as mentioned by several other persons in this forum. Date for the 710 release is delayed though.