If you die, and click Title Screen, there is a dialog that asks you if you are sure you want to quit, but the buttons on this dialog aren't immediately able to be pressed.

Steps to reproduce

1. Die
2. Click "Title Screen"
3. Notice the buttons are greyed out for a few seconds.

If this is intended, it is possible that this may be to avoid some issues in multiplayer, it shouldn't happen in singleplayer as well. If it's not to avoid issues in multiplayer, then it shouldn't happen at all.