When entering Echo of Hatred and approaching the fight stage, a spot light activates lighting up the floor where you fight.
When you go for repairs, and return to the dungeon, through either the town portal, or the main door, this light will not return. Instead the floor is a murky red making it much harder to read the direction the spikes will travel when their brief telegraph appears on the ground.
The only way to fix this is relaunch game, losing your Elixir.
Clips of Spotlight on vs off imgur /a/6d8pEh1