i'm having a similar issue. i'm currently playing on a new starter engineer while the rest of the game progressively downloads, and my enter key, instead of opening chat, will toggle windowed/fullscreen mode. when i press z, it will toggle the UI to disappear/reappear. none of the number keys respond, either.
when i look at all the hotkey settings they are accurate. my alt key isn't "stuck", it is very strange though. everything works outside of allods. anyone else have this problem?
i fixed this by logging in through the allods launcher instead of the my.com launcher. as a side note, when running it in fullscreen and upon trying to tab out, the game will jump back to the front of whatever you're doing. running it in windowed mode right now because it was preventing me from windowing out, even to task manager lol.
i'm using win 8.1, for anyone else that might be having any of these issues.