Reddit user /u/no_you_hang_up seems to have stumbled apon a bug, and I have investigated it; details below
The user posed an export with overlap groups that contain circles and icons, the groups rotate inverted, react on a global switch. But the icons were not able to be touched. My initial thought was that another item might be blocking the icons.
But apon further investigation I discovered the issue seems to be with the rotation animation. In the linked export,
https://drive.google.com/file/d/0B0K60UAYCGdOdlVyZ0Q2VmV0R3c/view?usp=drivesdk
I have created 2 copies of the reddit users overlap group. The first, the rotation amount is 100, the second, the user's desired 50.
Notice that if you touch the icons in either overlap group the "launch app" command works as expected on both. However, if you toggle the global switch on and play the animation the first group rotates 100 and touch works as normal, but the second group (witch only rotated 50) the icons do not activate the "launch app" command anymore.
The stack group can be rotated either 1 or 100 and the touch will still work, but it seems anything in between somehow disables the touch until the animation is reversed.
Thank you for your time, I hope that this is helpful for the development of the app.
My apologies if I have made a mistake in posting this as a bug.
Original reddit thread:
https://www.reddit.com/r/kustom/comments/55k19j/help_app_shortcut_icons_not_working_in_rotating/