Light go through the wall

hi , since i use 4.8 version i have some probleme to build light ,and it is unrealistic than 4.7.6 , i can’ t figure out where the problem is , take a look at my pic .

Have you made sure you put it in the right location? Sometimes looking at it from one angle can make it look perspectival right. Frame up on it and make sure its in the right location. Also a point light works better for lamps rather then a spotlight which would be more for celling lights.

my bad ! i forgot to put build mode to production ahaha ! feel ashame !