I can confirm same issue and I dont have any glass blocks above my spawning platform. I get 5 enderman at a time always, As soon as I kill them they spawn almost immediately but always only 5 at a time no matter how long I wait.
I can confirm same issue and I dont have any glass blocks above my spawning platform. I get 5 enderman at a time always, As soon as I kill them they spawn almost immediately but always only 5 at a time no matter how long I wait.