When me or my friend play no matter what season or class as we play either my skill tree will transfer to my mates character or the other way around and if they put points in a tree not available to the class i have then its impossible to mind wipe or if i haven't unlocked the passive tree e.g movement tree on that season character.

as you can see from the image im sitting at -21 points with points in the movement tree (not unlocked yet) and in the critical tree, this character is only level 10 at the time of this screenshot but i have more points then i should allocated. 

 its happened to over 6 of our character almost bricking them as we are not able to get some of the points back, even when we can mind wipe it them happens a few min/hours later making the game impossible to play with a friend.

hopefully there is a fix so i can keep playing with my mate.