Using the Vanilla launcher - the game exits without an error message nor returns to the launcher after I select the new Forge profile created by the [1.7.2-Forge10.12.0.1024] installer and press 'Play'
As a precaution, I deleted my 1.7.2 and Forge folders from my 'versions' directory and also the profiles from the launcher.
Re-downloaded 1.7.2 and started a freshly-made un-modded single-player game world using a default 1.7.2 profile.
Installed Forge using the [1.7.2-Forge10.12.0.1024] installer, selected the 'client' installation option.
Re-opened the freshly made world, using the default 1.7.2 profile, again.
Then tried to launch a new game using the newly created Forge profile. I got a loading icon on my mouse, then nothing. No error message, nor a return to the launcher.
I have attached (2) fml .log files. There are no corresponding crash .log files
Let me know if I have missed anything.
fml-client_.log
fml-junk_.log