World Partition does not stream when opening new level

When loading in a new level that uses World

Partition, the Terrain and geometry placed in the level do not stream in, only the the test BSP geometry and the skybox. When I press f8 however, the geometry and terrain appear. I am playing this in the editor and am not getting any strange errors except zero streaming sources being accounted for even though the player is spawned. I spawn the character from a custom game mode class.: ACharacter* NewCharacter = NewWorld->SpawnActor(LoadedSaveData->SavedCharacterBlueprint, SpawnLocation, SpawnRotation, SpawnParams);
if (NewCharacter)
{
if (ASPPlayerController* PlayerC = Cast(PC))
{
PlayerC->Possess(NewCharacter);
PlayerC->ClientRestart(NewCharacter);
PlayerC->SetViewTargetWithBlend(NewCharacter, 0.0f);
NewCharacter->ForceNetUpdate();
NewCharacter->MarkComponentsRenderStateDirty(); I added a bunch of extra functions to try and trigger the world partition into recognizing the character but nothing seems to work.