Traktor Pro 2 & Akai LPK25

hello everyone,

i have the following problem and could'nt find any working solution for it yet:
i'm using traktor pro 2 with my vestax vci 100mk2 controller. additionally i'm using ableton live 9 suite with the akai lpk25 midi keyboard for live sampling. both devices (vestax controller and akai keyboard) are connected with my macbook via usb. the controller routes the output signals as usual through the main output, the output signal from ableton is routed by the standard audio output of my macbook. so, i'm using two audio channels, that should work separately. now the problem occurs, that some keys on the lpk25 are mapped with certain functions by default, so that those functions interfere with traktor. although the lpk25 is not mapped in traktor at all. example: when i press one key on the keyboard, the appropriate sample is triggered in ableton (as intended), but traktor sets a loop in deck A as well. another key on the keyboard loads a track in deck a within traktor. another key stops the track in deck a and jumps to the first cue point.
because i have deleted any drivers of the akai keyboard and there is no generic midi connected with traktor, i assume, that the akai keyboard is mapped with certain functions by default. in my oppinion, it could be possible, that those functions are anyhow connected or equal to the keyboard shortcuts in the default traktor mapping. like when you hit one key on the keyboard the same thing happens, when you would press cmd + any key on the macbook keyboard.

has anyone had similar problems once or a solution to this interference between ableton and traktor?

i would appreciate, if anyone could help me. various phone calls with retailers, musicians, professionals and help hotline were completely unsuccessful yet.

thanks in advance and best greetings
dns