Stuck at ice temple exterior *spoilers*

[maggen82]

I have secured the necklace that allows you to open every door in the place, but there is one door that won't budge. I am quite sure that I opened it, triggering the ice lance trap, but I cannot enter the hallway. The door still shows as locked, but the visual effect that shows it as a door that can be opened is gone. Ofc I made the rookie mistake of not saving along the way, so I am quite literally stuck. Any pointers would be most welcome!