• reports "Nothing selected" only when all objects has no selection and it is in Seperate type(Mode)

• Tested all types (Seperate/By Material/By loose parts)

• instead of using

BKE_view_layer_array_from_objects_in_edit_mode_unique_data

i used

BKE_view_layer_array_from_bases_in_edit_mode_unique_data

because it needs the "Base" not the "Object" itself...