Groove agent se playing loop

Hi,i loaded groove agent 5 se latest update,when i load any kit and play a key on my keyboard,instead of a single hit drum sound,im getting a loop.
dont recall it being like that before!
am i doing something wrong?

Did you by any chance set your keyboard to transpose down an octave? If you hit the ‘Show Keyboard’ icon and display the keyboard, you’ll see the reddish and gold keys which are loops and phrases respectively and you could be triggering those if you’re transposed down. It could be something else, but I’d check that first.