Lightmap datas moved from a scene folder to another one as a new scene become active

Unity Engine
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1

Hi,

This is my problem (Unity 2020.3) :

In the editor,

1/ If you bake lighting for a SINGLE scene (not in additive mode).
2/ Then you load another scene and just set it as active (with right click=> set active).
=> All lightmap datas are moved from previous folder to new scene folder.
=> The new scene have a new LightingDataAsset where are attached the lightmaps from the previous scene.
3/ Finally, if you bake the new scene SINGLE. You lose all datas from the first scene because they are overwritten.

This can be easily reproduced by anyone with 2 new scenes.

I think this is maybe relative to Additive lightmaps current bug ( Multi scene lightbaking with some scenes being variable ), but in this case this is just a basic strange behaviour that i can’t explain.

At this point, I just can’t bake lights for my scenes and I am stuck here…

Any idea?

Thanks a lot,

Best regards,

André

2

This issue seems to me so huge that i’m wondering if i’m doing something wrong … This problem was not present in Unity 2019 and I use 2020.3 since few months. Maybe I’m missing some obvious settings, let me know.

3

The only workaround I found to avoid this issue is to close the editor just after having baked lightmaps and saved the scene.