Ok I think I corrected part by updating all the plugin.
But my problem still remain : it seems that there is a replication problem with the pawn location. How can i properly set client-authoritative replication ? I checked bIgnoreClientMovementError and bServerAcceptClientAuthoritative but nothing changed.
It’s clearly related to replication : when i play in editor, if I change remote role to Authority for the client, everything just go fine (for the client part, not for the server but it’s less important for me now)