Tracktion audio problem

[Bernardo Alvim]

Hey everyone, I'm trying to record my drums in tracktion using the MT power drum kit plugin. When I play the drums, I can hear it perfectly from the program, but whem I record them, for some reason the audio doesn't play properly, it keeps cutting most of it. When I play the drums, the keyboard doesn't get highlighted, is that the problem?
tks for the help

[dRowAudio]

Could it be that the MIDI clip is set to use a channel not supported by the plugin?