Hardcore LAN Worlds Have Buggy Spectator Mode

When a player in the above conditions dies, their view of the world in spectator mode has zero loaded chunks (even if F3 + A is pressed), and occasionally every entity gets stuck between two frames of movement, including players. Switching back to any gamemode repairs this, and switching to spectator without dying also causes it.

 

I haven't had the chance to check if this occurs outside of LAN or outside of Hardcore mode.