Shift+Enter or any other Line Break does not work in Client. Only in Blueprint. Help!

Hello people from Unreal!

I really hope you can help me out with that one.
Currently I got a Blueprint which has a Collision Box for triggering) and shows a text in the HUD when you walk into it.
The problem is, I can not make line breaks if I have an editable Variable for our Level designer.
Sure, it works when just make a line break in the blueprint, but thats not what I want. My role is to create a blueprint, that my Leveldesigner can just drag in and edit everything he needs to, most importantly the text that gets shown if triggered. The screenshots should help you showing what I mean. I can not use shift enter or \n or < b r > in this text field the designer uses (well i can type \n or br but it just playinly shows that in the game then too, instead of making a line break)

If I would type it in Blueprint it works just fine (As seen in screenshot) but not in the cleint. Anyone have a solution for that one?