If I run the debug version for a while I can start the regular version. The last time I did that though it got a unexpected error and stopped running. I am sure Andy is working on it.I am having the same issue on Windows 10.
Version 68 will not start-up. I have to start the debug version in order to get TwoTone to start normally, or I have to right click and run as administrator the non debug version, but am presented with the same screen and then still it won't start.