Consider this a bandaid fix (similar to rBe2724abc22d5). Real issue seems to be that object is still in OB_MODE_PARTICLE_EDIT whereas it should be in OB_MODE_OBJECT after toggling 'Exclude From ViewLayer'. So while this patch prevents the crash, it leaves the object in a weird state (it cannot be selected for example), needs further investigation. Maniphest Tasks: T77074 Differential Revision: https://developer.blender.org/D7843