alright, so in my hunt for the last plate to summon arceus, i went to the swamp biome to try and find a mega swampert.
about a hour or so in, pokemon basically stopped spawning around me. i opened up the F3 menu, and the entity limit was through the roof, even thought i was the only one on, and not near anything we had made.
i looked up, and i saw
DOZENS of swoobats (or woobats, i didnt really double check) were flying in the middle of the air. i got up on a nearby tree and watched, keeping my camera on them as i opened up a playlist for a few videos in my other screen. i sat there, and they never despawned. other pokemon i see despawn, even right in front of me but the swoobats never despawned.
i figure there must be a glitch in the code where the swoobats were not included in the RNG to despawn per tick.
i have no idea if this is a isolated incident, and i had to run to work and stupidly forgot to grab a screenshot, and i havent had the time today to try and do the same thing again. so this is my first report, if it occurs again ill reply to this post with a screenshot
(also please forgive me as i do not have the forge build version due to it being a friend's private server and she hasnt been on since this has occured, but knowing her it should be one of the later stable versions)
(and there are no additional plugins)