[=Nsomnia;314420]
I have that happening. I had to re-create a few bits of my blueprints then it randomly went away on one nad not on the other. Then I copy pasted the project, deleted the saved and intermediate folders and re-opened and it was fine.
shrug
They couldnt replicate it on answerhub.
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Is this being seen in child blueprints or any blueprint? We do have a bug report in our system (UE-16433). This report is specific to child blueprints losing references to self pins attached to Set Array Element nodes.