Which shortcut? Maybe the shortcut you mapped to the touch area doesnt exist in that ROM. Can you try selecting the shortcut again and saving? Is the shortcut displayed in the list of available ones?
Ok then it might be device specific, i need you to create a dull Android Bug Report as explained in the "Android Bug Report" section here: http://help.kustom.rocks/i193-send-debug-data
Please reproduce the problem first (so touch the shortcut that doesnt work a couple of times than generate that and send it to [email protected] mentioning this thread)