The G/gate input on this module is not a gate at all. Were it an actual gate you would expect any update at the In port on a voice for which gate is "1" to trigger an update at the output. Instead it functions more like a trigger, but stranger still, it works like trigger inputs on audio modules as it triggers on a rising edge (going from 0 to 1 or presumably any other positive value). This is unlike every other event "trigger" input (except Event V.C. Min), which of course trigger on any event, or any positive event, but in any case do not require sending a 0 followed by a 1.
This module also does not work properly at initialization time, perhaps a side effect of the bizarre behavior of the G input.