Hostile Mobs

Hostile mobs are spawning very close and non stop basically. So i do not have a screenshot since i do not think it would provide the information you are looking for. The reason I say this is because since 1.16 hostile mobs are spawning basically on top of me in my structure. We are playing on survival and we spend half the day time clearing out the mobs that spawned inside of our extremely lite structure. After clearing our the skellies, creepers and zombies so they do not kill our villagers or destroy what we have built we get a little bit of time before mobs start spawning again. The respawn rate is making survival almost unplayable. Something is wrong with the hostile mob spawning in well lite structures so often it is causing the game play to almost be impossible to get anything done. This is not just a 1-2 or something we are getting 10+ mobs of various types with at least 3-4 creepers that spawn inside of a well lite and populated main structure of our castle we have built. Once we clear out the spawns we have a short amount of time before we have start clearing again so mobs do not destroy the structure have built from the well lite and populated area. Please fix this issue