2 generals?

I recently played 1vs1 and somehow i got 2 generals.Here is the first image.I moved my general out of Greece to Bari.For some strange reason i got 2 generals.Like i didn't moved one from Greece. lol



And second one lol:



How this happened?

That happen to me once in aetius 's map, one of his, but then one general disappear, and i only have one left afterward.