I got stuck in the same position! Got all the items (Feynur, Kohar, spider leg and wisdom rune) but when I enter the ante-room of the first summoning test, there is no teacher to whom I can give the rune (as mentioned in the walk trough). I dropped all other items my hero and the death night were carrying in the dungeons below (near the two imps), my hero only took the summoning items and I returned to the first summoning room. But no teacher and no chance to summon a creature. When I took the summoning items my quest log did not turn red and when I entered the summoning area i did not get experience points which have been mentioned in other postings in this forum.
I suppose my major problem is the missing teacher.
I went to Beleram in the storage area and talked to him, and I went to the summoning teacher in the north of the academy and talked to him. But they just communicate as if I had no summoning items at all.
What can I do?
berodiver - totally devastated by this bug.