I just tried tutorial>combat practice and I got the same thing, either right away, or after one or two moves. Can't say why. The main part of the game seems to work properly though.
Yes, I notice it doesn't affect the other actual fights.
Hope it will be fixed anyway.
About the new characters to come.
I hope the creator will still put a lot of effort into diversity of fighting moves and way to inflict damage to player.
In UFG 1 the girl had a lot of moves, so you can at least find 7 or 8 that you actualy LOVE to see in action.
With the current WIP versions, not so many moves I really love. (headscissors variations, different face sitting moves, bone breaking...)
All current moves are still very ok!