[Double NPC's in PRIMM.]

Can someone PLEASE help me? I'm getting double NPC's in PRIMM and I don't know why. What can I do to fix this issue?

[OpenMW?]

I just downloaded Open MW and when I play I am missing textures like flames and some objects like kragnac's key icon. What I am missing?

[How to resolve the "Trinity Restored: Karliah Walk-out Scene"-kind-of-bug. (No quest skipping guaranteed!)]

YOUR FIX DOESN'T WORK AT ALL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[How to resolve the "Trinity Restored: Karliah Walk-out Scene"-kind-of-bug. (No quest skipping guaranteed!)]

How do I delete the gate through the console?