Fairly disheartened now, because your code does not appear to work on mine. Could you provide a screen shot/video of yours, please?
Here’s the code file I just executed: https://www.dropbox.com/s/q4t4cf3681ywz8n/main.lua?dl=0
Here’s the video: https://www.dropbox.com/s/jtxqdyuc8763ale/Untitled2.mov?dl=0
You should obviously get a second red circle 100 px to the right after 1 second. I am not sure if it didn’t work or was off screen - have you tried it in landscape?
If this doesn’t work for you then use my code as a simple use case and report it to support at coronalabs.com
All the code snippets you’ve sent seem work fine for me.
Can you send us a small project that demonstrates the issue when you run it?