A user contacted me today with an issue where the toolkit wouldn't launch and a large error message appeared in the terminal that opens with the toolkit and then promptly closed. This issue was caused by the config file not being saved correctly. I'm not sure how the config file was corrupted, perhaps closing the toolkit during the save operation, or some other issue. But if the file exists and is empty the toolkit will crash on load. I am working to fix this issue ASAP, but if you are encountering this issue there is a simple solution. Delete the user config file. It is located at: 

USER_NAME/AppData/Roaming/LMTK_User.conf 

This file should contain a simple json structure showing key bindings and last file save path. If the file exists but is empty, it will crash the toolkit. If the file doesn't exist then the toolkit will just make a new one on startup. I should have this fixed by end of day, but I want people to know how to fix it till then. This likely affects all versions of the toolkit 076 and earlier that use the config file.