(if you want I can video record the second issue easily as it happens all the time)
The preset SpaceTime is the first factory preset (F1) of SpaceTime algorithm. You can find it in H9 Control. If you can reproduce this issue, please let me know.
The tap function on an aux switch is different from the built-in tap switch (right footswitch on H9). For a complicated algorithm like SpaceTime, tapping on an aux switch doesn't respond sensitively due to hardware limitation. Please use the right footswitch to tap, and assign another function (such as increment and load a preset) to your aux switch.