There have been only a few small bugs found in the latest beta software. Also, we have left any error being printed to the console so that we can debug easily. This will be disabled in the future release. Some exceptions are suppose to occur, but you shouldn't see the message.
Currently, the 'New File' doesn't work because the sdm.sdm file is out of date. However, you don't need the to hit new file, since the application starts up in a new state.