It seems there is an issue when loading the tunes and using the push button start.
To avoid any issues, it is highly recommended that you simply pop the button out and use the key during the tune loading process.
If you wind up with a non responsive starter button after loading the tune, simply pop it out, stick the key in, and all will be well.
We should have a fix for this asap, and will release a new update as soon as it is ready.
Thanks