When playing preview from the capx, I have no issues at all
The exported project does nothing however, are you sure they are exactly the same?
Feels to me like in the exported project the event is "on touched" while in the capx it is "is touching"
I was pretty sure they were the same last night. I re-exported and uploaded again.
Now it works on Firefox, Chome and on my iPhone. I don't know what was wrong last night...