Nullreference error when Preview baking after a partial bake

Reproduction:

1) In a project with multiple scenes in an APV baking set, perform a full bake(with all scenes loaded).

2) Unload one scene.

3) Bake again.

4) Perform a Preview bake on an APV Adjustment Volume.

 

Result: There will be a nullref error

 

Note: It can be important which scene has to be unloaded, so if it doesnt reproduce unload the other scene. In my case I always unloaded the inactive scene, lastly added to the hierarchy.