I had this same problem as well, but only in production.
For future readers: In the admin console, you need to pick the
application you are looking at AND the version you want to see.
It took us quite a while to figure out there are 2(!) drop down lists
to manipulate.
On Jul 19, 9:40 am,
The listed behavior seems to work in production only.
I haven't been able to write output on standard streams in development
too.
Anyway you can simply log the required output with the appropriate log
level, and it will be prompted to your console if logging properties
are correctly set.
Regards
