Thank you, it was helpful.
I went to Kashyyk, opened all chests(27), meditated at every point, used 2 skill point and then back to Dathomir.
I am on PC and I am experiencing the same thing (Jan 5th), Nothing I do will allow the fight to continue after I am instructed to do the split saber, it then says to "press B" or whatever key you have binded for it, and then the 2 players freeze, the game and surroundings all still work, just not to 2 characters. This is Royally frustrating, I checked for a patch, hint or anything, but nothing works ☹️
What I found works. Switch to using a controller and when it shows the B key after the split saber attack you must keep rapidly hitting that key repeatedly, just constantly depressing it won't work.
As for the keyboard/mouse combination, I have not found a way to make that work. BTW this also applies at the end of the game during the second encounter with Darth Vader while sparing with him just after you open the door, concentrate on summoning help from BD and repeatedly bumping the B key to break the saber lock up. I won't tell you what happens, other than you will be able to continue the game.
I tried all the other fixes people have suggested on all the posts and none of them worked for me. I was able to finish the game twice using the methods I described above.
