Another Kulemak bug thread

This issue looks different from others I've seen. I was doing my first Black Cathedral of the league. First phase, I two-shot the boss, pop up to select the finger appears, I click that, loots drops, then nothing. Nothing in the arena is clickable. Boss body is still on the ground. The exit is blocked by a green field. Logging out and back in puts me back in the arena, still nothing happening. Selecting respawn at checkpoint puts me at checkpoint, green field is still there. I can walk through the green field back into the arena, but then I'm still stuck in the arena, can't walk back out.

edit: I respawned at checkpoint again, then portaled out. Went back to well of souls, the option to jump down is gone, but the black cathedral still shows on my mini map.