Cannot remount to entities before chunk has been reloaded

[masagameplay]

I am currently running

• SpongeVanilla version: 1.16.5-8.0.0-RC801
• Java version: 11.0.11
• Operating System: Windows 10

Plugins/Mods:

• Test plugin that mounts players to entities

Issue Description
Remounting to the same entity with Keys.PASSENGERS is not working if the chunk has not been reloaded.

@Listener
public void onInteractWithAccessor(final InteractEntityEvent.Secondary event, @Root ServerPlayer serverPlayer) {
    event.entity().offer(Keys.PASSENGERS, Collections.singletonList(serverPlayer));
}