Problem with append tool in the model builder

Hey community,
I've one problem:
I have a feature class or dbf table with lot of fields and empty feature class or dbf table that I want use as schema. So I've made a model builder with Append tool but the tool produce correct geometry but some field are empty (there are not errors message) . If use append tool manually with the same files the tool produce correct geometry and the fields are all OK.
How can I solve this problem?

Thank you very much