I interacted with the statue before getting the heart. Now that i have the heart I cannot re interact with the statue and the cut scene to progress in the main story line will not trigger. I do not have another save file to go back on. 

I have this same issue. I did have an older save but interacting with the statue placed me like cut scene would start but did not. The quest still says I need to Investigate even after getting the statue parts.

Well I went back and finished every other zones side quests and discovered everything. Still no word on a fix for this main story line quest. Guess that’s it for me.. was good until it wasn’t