I've routed a board, and redid my designators in the schematic and updated the changes to the pcb. In doing so, the nets which I have routed, now give me an error. Basically what's happened is that some of the traces netnames haven't been updated.
Yesterday a trace from component A to B had a netname of net_a_to_b. Today after i changed the designators, the trace still holds the net_a_to_b, but the components are now C and D. The trace should have updated to net_c_to_d.
There aren't that many nets, and I can just redo them, but I shouldn't have too.
Does anyone why this happens and how to get it right every time ?