Hey there !

I've had that bug happen a couple years ago already (and it made me quit my previous playthrough back then) but completely forgot about it. During the quest ''Chasing Echoes'', when I enter the courtyard, Serana doesn't follow me there, making me unable to progress the quest. I've tried pretty much everything I found on the net, beat her up until she's down after teleporting her, manually advance the quest through the console (which doesn't trigger the next step so I'm still blocked), even when I use the console to summon her she just doesn't trigger her dialogue to progress the quest. Is there any way to fix this ? I'll assume it might be a mod that's interfering, but finding which one seems like a hassle.

Has anyone encountered that bug and managed to fix it ? Thanks in advance.