exactly, same thing happening here even with the latest build. Could it have something to do with profiles inside OS X?
Can everyone open up the preferences for Corona SDK and make sure the “Show Runtime Errors” is checked.
Also check this blog post and see if any of these conditions are true:
http://www.coronalabs.com/blog/2013/03/13/wednesday-faq-runtime-error-listener/
Show runtime errors is checked in preferences
I get an occasional pop up error, (but not always)
Either way, no errors are shown in the console, only using print displays in console.