Now,i cannot test anything on UAT because DBA team proceeding DB DUMP from Production to UAT. Tentative date will be finish by tomorrow.
As you mentioned, I already checked and found some cartons directly shipped from reserve location (PD11,PDM03) But base on design They should anchor carton transaction for any carton always excep only INT2(Pallet Selected). I remembered we used anchor process when we golived. Let me ask DHL and CFR then let you know later.