After killing the 2 false magisters trying to save Han inside Fort Joy and using the boat to escape, my chars get the 2400xp reward multiple times. I would not have noticed if it had not made me level to 5 a few minutes only after my characters got to level 4. When I checked the log I saw that 2 of my characters had gained 2400xp 6 times and the others 5 times. I reloaded a saved game then made one right before taking the boat and, each time I escape, my chars get different amounts of xp: the same char can get from 9k+ to 21k+ exp. I play in singleplayer mode, chars are a custom, Fane, Lohse and Sebille in regular tactician. 1 free level up breaks the game, I do not know if this bug happens again later for I stopped there. I may try again using an older saved game but I have little hope.