The warning icon here is shown because the variable “Global/FingerTrigger” is currently null/not set (in the editor), and as such the “(Transform)” text is red right next to it in the action inspector on the top left.
Remember that this is just a warning though, and not an error.
I will see into adding the reason of the warning icon to show in the inspector as well in the next version though.
Gavalakis
