Cheydinhal Oblivion Gate

[DuNeDaIn88]

The Cheydinhal Oblivion gate also in the main quest. If you've seen my other post on the Bruma gate, u can see that i have glitches in the game concerning oblivion gates... Dunno why... but after i take the sigil stone, i dont get transported out. And i walk out, then the oblivion gate doesn't close, instead it just stays there. ANd the quest says "the oblivion gate is not to be seen anywhere" or something... But i can see it. i talk to the count's son inside the gate, and he says talk to his father. i talk to the count and he gives me a weapon, thorn blade or something. u can choose between that and another one. Then i talk to him about the Bruma Help thing and he says an oblivion gate opened and it's the same one i just closed! (well sorta) Help, what should i do? Or is there also another setstage for this too? Thanks alot.