My thunderbolt SSD setup worked for a little while (a few hours), but then it stopped working again (after the computer went to sleep). I will give up on it for now and use USB 3, even if it is slower. Nor is this the first time that if the computer goes to sleep, thunderbolt loses track. The display stays black, and I cannot access the application. Nor am I the only one who is having problems with this!
I am not happy!