Hello, I am a creator of AddOns, this mentioned problem occurs in versions 1.19.50 when I kill any Mob, either by command or manually, either AddOns or Vanilla Mob.

  The most recent version that doesn't have this bug, which I tested, was 1.19.40.24.

  When I go back to the Map that closed it, more or less, it comes back a few seconds before I kill the mob.

  I only discovered this when I created a Survival Map and went to get wool from the Sheeps and... the game crashed, long before I tested some of my mobs and I thought it was an AddOns bug, but it wasn't, it was the game.

  I'll try a demo video, just ignore that the game language is in Portuguese.

  I will be grateful if you fix this bug, until then I will enjoy your game in version 1.19.40.24.

obs: I had to lower the quality of the video because I discovered that the site only accepts files with 10MB.