I hate this new glitch!!! It completely erased one of my maps. I have this map called Gravitation and Escape. Gravitation is the sucky map and Escape is the good map. I play on escape and save a game type to it in forge but when I play customs it is the map of Gravitation but it is named Escape. IT COMPLETELY TOOK OFF MY MAP!!! I wasted a whole day making Escape for nothing... This glitch has happened to more than one map of mine.
Are you sure because that doesn't just happen. Its probably operator error...just saying. A map with a completely different name does not save over another map.
Check your HDD. If the map file is gone, then there may be a problem. As of now, I would assume what Crypto said above me, and wait for it to go away/get fixed.
Actually it's happened to me before too, the name of the map stayed the same in the map selection list but the actual map was replaced with the other map I was making.
Try loading it from your saved variants, NOT from your recent games There's a glitch there where it'll save the changes you make, even if you didn't save changes. It's probably not a glitch, but I dunno if it works 100% of the time. This may sound unhelpful, but if the 'glitch' I stated above really is a glitch, this may be something it's also causing to happen.
Hmm... I couldn't fix it. I just deleted all my maps. I only had about a few maps. I'll just try to be extra cautious and use only BASIC EDITING only. I'll set the objective in the game after I'm done with the map.