Persistent level reference names change

Hey!

I am trying to reference some objects in my level from the level blueprint. I have these 3 blueprints that I need to turn the visibility off on (TextSwap_Woodlands1, 23, 33)

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It works fine for the first few times it is used. But eventually they always become unknown. They are children of the PlaqueBlueprint_Woodlands blueprint. Which as you can see in the second image doesn’t get the same error. Perhaps it has something to do with being children?

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Any ideas are welcome!

Well I just went a new way with it and animated them into view instead of doing the visibility change. But I would still like to know if there is a fix for this for future reference.