Hi, I have exactly the same issue (since 4.8). the PrintString BP node does only sometimes work, but other times it doesn’t print anything to the screen in-game. However, in the log and console these messages always appear (so the node is definitely ticked). Unfortunately I cannot reproduce this problem, because it only happens sometimes to me, I haven’t figured out yet when. Also for me restarting the editor usually helps, but sometimes I need to restart it several times. Any ideas?