This means that if there is considerable server lag, you will not be able to use tab completion. This is inconsistent with regular typing, which is client-side.
MC-78522
Tab completion is server-side
Resolved
Works As Intended
0
Much of the tab completion depends on run time variables the client not necessarily knows (all) such as player names, score board names etc. Also it's dependent on current player op level, game mode etc.