You should rather set your Touch plugin's property "Use mouse input" to yes, and only have a single condition/input : the touch plugin.
Also, as asked in how to report bugs you should post a capx with your report that would allow Ashley to test quickly if needed.
I don't own a touch device, so I can't try by myself, but it is more likely that the input is the cause of trouble here.
It perhaps can be an other element in your code that sets the group to be deactivated without you expecting it.
Try to reproduce the issue in a single capx (two layouts, one button, touch plugin only) and see if the code still is an issue.
Also, from a logic point of view, why not simply put the action "goto layout" in the "on touched" event itself ?