I don't know how it happened, but during the combat I can't select the target enemy, and the "end turn" button broke. I was spamming "1" to use the basic attack while selecting the enemy, so maybe this is the cause.
The debug console keep writing the same line again ad again.
On a side note, sometime when I minimize the game window the buttons broke in the same way. This happen in several zones, not only in combat.
Sorry if those are already know issues. I tried to search for them but I may have missed them.