Works on the server but not in local

Hey guys, so i’m quite new to the multiplayer blueprint coding so it might be a newbie mistake, but my problem is this one :
I’m trying to make the character look at the cursor in the top down view mode. At all time and not only when clicking, it’s working but only in the other window (another client window), so i feel like it’s working on the server but not locally, is this possible O_o ? What am i doing wrong ?