Looper: 1/2 speed button weirdness

    Anyone having this issue with the 1/2 speed button on the looper where it keep switching itself to 'momentary' mode? You're supposed to hold down the button for a couple seconds to toggle between momentary mode but I find that it switches itself to that mode even with regular button presses sometimes. This usually happens after I press the reverse button and then the 1/2 speed button in quick succession. Also, how come the secondary light on the half speed button doesn't light up when enabling momentary mode, just like the second light on the reverse button lights up when you've enabled the 'back & forth' mode.