Warning while placing parts on schematic on existing wires

I apologize if this is not the right forum but I didn't found a forum about schematic capture.

I'm recently passed to Orcad 16.2 and I have found an annoying problem while placing parts on schematic: if I place the part and then connect the pin with wires to other part is OK but if on the schematic there are already some wire and I place a part in order to use the existing wire the part can't be placed and a yellow warning triangle is showed.

This happen when I want to replace an old part with a new one without moving all wirings: the new part can't be placed where the old part was. In previous version of Orcad this was possible.

I suppose this is a sort of DRC warning but I don't know how to turn off.

Can anyone help me?

Best regards.