ue 4.15 vs 4.14 - lighting issues

hello

I have updated my project from version 4.14.3 to 4.15, and my project look like it lost all the bloom, and everything seem so much darker that it can hardly be seen. Can you help me understand why, and how to fix this?

Comparison screenshots attached

many thanks

Take a look at this thread: 4.15 tonemapper - is it possible to simulate old effects? - Rendering - Unreal Engine Forums

Disable filmic tonemapper, change bloom values in ppv to match what they were in previous engine version.

wow, I see, oh ******