Light build is not saved on maps inside blue print UE 5.2

Hi all , I have a wall with Static lights inside a bp , and build lighting maps normally ,but its not saved like the rest of the lights in the level when saving project, upon reopen project it want to rebuild again, any idea why is that, is this a bug in UE 5.2 or what ?

Hi @wawoo,
I am a contributor to
Luoshuang’s GPULightmass - LGPU 5.4
In the thread you will see we had major problems with lighting of shadows in 5.2. It was so bad we did not make a version for 5.2 and moved on to later versions.
I cannot guarentee this will fix the problem, but this independant developer version might work.

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