If that is the case, maybe you can try to re-impersonate the actual SystemAccount identity from the site the list is found on.
Marka uu qofku sidan yahay waxa aad isku dayi kartaa inaad u fiirsato dabeecadda caadiga ah ee qofka dabadeed waxa aad eegi kartaa farqiga ku yimid dabeecaddiisa.