Twxit: unable to offer draw

hi,

in twixt game #50381 I'm trying to offer a draw, by

1. selecting a move (which is displayed)

2. checking the "offer draw" check box

3. submit the move

however, ther server doesn't seem to accept that.

It is still my turn after I do that. My opponent

didn't succeed either when it was his turn.

is there a bug or am I doing something wrong?

bump