In Dungeon Freedom in SI, the cutscene triggered by entering Lorthondo's throne room never happens. The man he's talking to never appears, and he simply stands still. This doesn't break the game, because he appears later without any problem.
Attached is the best savegame. All you need to do is walk through the teleporter and use the key on the correct door, and the bug will be replicated.
Forgot to add, using the latest versions of Exult and SI Fixes.
Try again with the correct installed si fixes. should work now. but let me know if not.