Problem with string arrays

What I want to do with my blueprints is have multiple blueprints put a string per blueprint into one array and then have another blueprint that prints that array. I made a blueprint interface with a function that has a string input and a string array output.

These screenshots are the blueprint for the character that adds a string to the array:

These screenshots are for the character that prints the array:

(There’s another screenshot but I’ve hit the limit.)

The last screenshot.