How do I execute two tasks at the same time

There could be three reasons I can think of;

  • Some cast failed. Put a print string after the cast failed nodes and see if it’s printed.
  • Is it possible that you’re actually only spawning one tile? the function only spawns one actor, so if you call that function only once then only one tile is spawned.
  • The spawned tiles are overlapping. This may happen if there’s some flaw in the setup, making the tiles spawn at the same place so that they overlap perfectly. Though then there should be some flickering going on.