Lightmap issue with assetbundle

I build a lightmapped scene into assetbundle, and load it in editor, the lightmap is missing. I dig into it and find strange things, I don't know how to deal with it.
I write a script and attach it to the root of the scene to report the lightmap information.

And Print this result, I think it means the lightmap is existed:

 

And I check the lightmap texture:

And print it on GUI, it shows!!

 

I watch the render pipeline in profiler, the LIGHTMAP_OFF is used.

 

When I use EditorApplication.LoadLevelAsyncInPlayMode to load the scene, but not Application.LoadLevelAsync, it use lightmap.

 

I find a strange thing, if I build assetbundle when the editor open the lightmapped scene, then everything will be OK.
But if I build assetbundle when the editor is opening an empty scene, the problem will show.
Is there anything I missed?

 

@watsonsong Did you find any solution how to fix it?

 

@DziDAI @watsonsong same problem~! Download lightmap assetbundle, and set lightmapsetting. instantiate prefab from assetbundle , then recover their rendermesh component's lightmap index and uv. but wrong, open debug frame, shader properties LightMap_OFF,anyone have solution for it? (instantiate gameobject from resources is ok!)
// 1. instance from resources

// 2. instance from assetbundle

 

Hi @matrix4x4

Try next:

1. open empty scene and create assetBundles, after test it, if ok, so your lucky, if not try step 2
2. Open any scene with Lightmap and create assetBundles (while scenes open) and test it

 

As searching brought up this thread, and people still have the same problems ...

Using Unity 5.6.5p4 (64-bit)

Edit -> Project Settings -> Graphics -> Shader Stripping -> Lightmap Modes -> Set them to MANUAL and select the modes you use.
Worked for us!

Credits go to:
* https://www.leegoonz.com/single-pos...le-with-Lightmap-packing-problem-How-to-solve
* https://docs.unity3d.com/540/Documentation/Manual/BuildingAssetBundles.html

 

We tried manual and it still did not work for us in Unity 2018.3.0f2 with the Addressable Asset System.