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Regarding your simulation files, using the parameters you sent above, I get in the GUI plot 10 femtos generated per cell, as intended to be. The red diamond shape markers denote femto base stations. You can see the plot in the link https://owncloud.nt.tuwien.ac.at/index.php/s/rwlZqj0QeQbLJWy with access password: femto.
I suggest that you carefully check if you overwrite any of the parameters during simulation; after generating the network in LTE_sim_main.m file, put breakpoints and check for parameters of LTE_config class to see if parameter LTE_config.femtocells_config.femtos_per_cell = 10.