However, we hope you have enjoyed the game! The "best way" to 'workaround' that bug you mention and start the level again is to go to the main menu and select the level you were playing in the "Chapters" sub-menu.
We decided to keep it simple as most of us are beginners of UE4 and decided to use this Game Jam to learn, and learn we did! Also, being our designer's first serious attempt at level design, "good enough" means a lot to him and the entire team. Thanks for the feedback!