The first time, in Autumn 1904, I ordered Armenia-Ankara, supported from the Black Sea. The support order was registered, but not the move. I was fairly sure I had ordered the move, but as it would have failed anyway, I figured it wasn't a big deal. This turn, Spring 1905, I checked my orders several times, to make sure that I didn't make a mistake, as I presumed I had done last turn. I ordered Warsaw-Galicia, supported by Silesia. This time, the move was registered, but not the support. In both instances, the other unit just held. Could someone please check (the database logs or something?) to see if no move was registered?
Though I think it's unlikely, it's possible that the first one was a mistake with my entering the orders. The second time, though, I was paranoid enough to check at least 5-6 times. I didn't finalize the orders because I was waiting to hear from a (supposed) ally, but that shouldn't matter, should it?