UMG Widgets variables stop updating SetText after drag and drop operation

After drag and drop operation widgets stop to update if is using SetTex (text) to update on the screen,
works fine in 4.11 or early versions.

Sending clean project sample with bug

Hello ,

I was able to reproduce this issue in the project provided. I have written up a report ( UE-31777) and I have submitted it to the developers for further consideration. I will provide updates with any pertinent information as it becomes available. Thank you for your time and information.

Make it a great day

Thank you for looking, it might afects other types of variables, I try to set color in progress bar type and stops update too.

Seems to be related to