Reply to midi fighter mapping to NOT use load sample from loop recorder

hi,

i have mapped my midi fighter top two rows of 8 buttons to correspond with triggering play for samples loaded into the 8 sample deck slots. during a gig i left the last 2 sample slots empty, and accidentally hit one of the last two midi fighter buttons and with no sample loaded it automatically loaded a recorded loop into the empty slot. i don't want that to happen ever. is there a way to disable that mode?? would be awesome, i looked a bit on here but was somewhat at a loss for exactly what to search for. thanks.