Fog/Mist hard visible in 4.25

Today I make new project with Matinee demo in 4.9 and I tried to export the Mist cloud in 4.25, but it looking different. With same light settings in 4.9 the fog is visible with low light, but with same light in 4.25 is complete invisible, only if I pump the light I can make it visible. What is changed and how to get same effect in 4.25?