Dinamically created array of strings is empty after packaging

Hello, everyone! I have a trouble with packaged game. I using blueprints on version 4.26 (tried in 5.0.0, but after this bug recreated project on 4.26). In my game I have a 4 arrays of strings (4 rows in each).

When I running game in viewport, this lines showing:

But when I’m packaging content, I see empty lines:

What can I do and what you need more to help me?