Hey @TheStad1_b09!
It will have to do with lighting!
Look at your lighting and see what is different on this stage vs other stages. Then open the sprite and another sprite in the level and see what is different.
If you can bring more information, like which sprite you’re talking about in the picture, and an example of what it should look like, that will help!
Don’t be afraid to post in English, and your native language! Google translate may help us bridge the gap! 