Light leaks in corridors

Hello,
I’m working on an interior and I have light leaks in a corridor that shuold be dark beacause there are no windows and all lights are turned off. I had the same issue with another corridor in a previous work but I solved it by adding an 30cm thick extra ceiling to all the appartment model. I guess it could be a lightmap issue but I can’t figure out how to get rid of it. Generally I subdivide the walls and ceiling surfaces into smaller ones and I make them thick enough but this time I can’t solve the problem. The strange thing is that this leaks appeared at some point, I made several wip shots and the light behavior in the corridor was correct. Do you have any suggestions?

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](http://i66.tinypic.com/2aex9ic.jpg)

@kamil_dawid_niziolek Could you share the project file with me in a PM?

Hi, I send you the model some time ago, did you find out anything?

I’m actually unable to reproduce it with lights turned on and off.

Could you give me more information about the setup? specific time of day, artificial light settings and maybe about the chosen scale.

As well the used version of SketchUp and Enscape.

Sorry for the delay, I actually thought I sent you the message but was still in draft. -.-‘’