FString Append node is slightly bugged

Hello.

FString Append node is slightly bugged. If I paste something like ": " (two spaces) in fields of that node, node starts flickering:

There is link to video with repro steps:

Hello ,

I was able to reproduce this issue on our end. I have written up a report and I have submitted it to the developers for further consideration. I have also provided a link to the public tracker. Please feel free to use the provided link for future updates.

Link: Unreal Engine Issues and Bug Tracker (UE-35053)

Make it a great day