(1) I had bugged fights in the the dark cavern and the mysterious room; the mad guy didn't fight and did not appear. One time couldn't do anything - his portrait was shown at the top, but not visible and no fight. Had to reload.
edit: (2) something I see with trompdoy now and before with other enemies: casting of tactical retreat seems a bit off a lot of the time. He retreats and starts walking back the distance he retreated...
(3) journal extries keep flickering, although I have read them and nothing is new
(4) pathfinding with height differences and small platforms is difficult for the party - one or two stay behind and when clicking again, the first one (that already 'reached destination' party of 3) stars climbing back to stay with the others...