The bug

Shaders of creepers, endermen and spiders in Spectator mode will still be present, even while not spectating the mob.

Expected behavior

You can only access these shaders by spectating the mob.

Observed behavior

After dying in Spectator mode, the shaders will still be present, even while not spectating the mob.

Steps to reproduce

1. Enter Spectator mode
2. Click on a creeper, an enderman or a spider to spectate them
3. Kill the player

   /kill @p
   

4. Respawn into the world

Note

Issue is fixed by using F4.