VFX Spawner Devices no longer work in-editor and live games.

I found a workaround that enables VFX Spawner Devices:

  1. Use TeleportTo to move your VFX spawner some nominal distance.
  2. Then, call Enable(). Your spawner should work as normal.

You only need to do the first step once. You can Enable() and Disable() as much as you want from there.

Hope this helps others!