Hi,
Same for me! I have defeated the other two daugthers. However, I was not able to interact with the corpse of "Daughter of Lerion - Regan".
I tried loading saves, fast travelling to other places, moving around the corpse spamming the interact button. Nothing seems to work for me.
Hey guys,
Thank you for reporting this to us.
We have passed on issues with the Daughters of Lerion to the AC team to be looked into.
Just to confirm, did you all die a few times before this occurred, and have you been able to interact/start the fights with the other ones after this point?
Thank you for reporting this to us.
Did this occur after having died a few times on this boss fight? If so, then this is something that we are aware of and is currently being looked into.
Did you take a break at any point from fighting them or was it immediate retries before this occurred?
@galacticrazor11
What platform are you playing on when you experience this?
The devs are currently looking deeper into this issue
If you're on PC or PS4, can you please share your save with us via Facebook PM or Twitter DM
Hey all!
We're glad to hear that you've been able to successfully fight Regan now! As we've had no new reports of this issue following TU 1.1.1., we will now be setting this case as resolved. If you are still unable to start the fight with Regan, please don't hesitate to update this thread so we can take a closer look.
Good luck with the rest of your viking adventures! 
Hello there!
I apologise for the delayed update. A fix for interacting with the corpse to trigger Regan's battle was deployed in TU 1.4.1. We will now be marking this thread as resolved.
If you're still having trouble triggering the boss battle against Regan, please can you provide us with a video which shows the following:
I'd recommend uploading this video to a sharing platform, such as YouTube or Google Drive, as this will allow you to post a shareable link within this thread we can take a closer look at.
Thanks! 
Hello there,
As we have had no reports of this issue with triggering Regan's battle since the release of TU 1.4.1, we will now be locking this thread.
If you encounter any further trouble with the Daughters of Lerion, then please feel welcome to create a new thread and we’ll gladly take a closer look. When creating a new thread, please include any additional images/videos of the issue you’re encountering in-game, as this will be helpful for further investigation.
Thanks! 
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