Tutorial Crashing after Victory

Tutorial keeps crashing before I can click the victory button at the end of the game. The game works smoothly all along and it just crashes at the end. Tried repairing. It's bothering because I can't unlock the next tutorial.

Tried full repair, disabling/enabling ''low spec'' and ''close client during game''. Graphics were running smoothly on high and putted them on low.

(I'm writing this for my friend)