Agree! This is happening on the Official Minecraft Community Realm also. We have 3 dungeons that had working spawners that stopped producing any spawns. They continue to light up when approached but no mob is represented spinning inside the spawner any more. I can provide more info (coords, etc) since this is an issue on a realm that is easily accessed by Minecraft/Mojang support personnel.
Matt Coia
Agree! This is happening on the Official Minecraft Community Realm also. We have 3 dungeons that had working spawners that stopped producing any spawns. They continue to light up when approached but no mob is represented spinning inside the spawner any more. I can provide more info (coords, etc) since this is an issue on a realm that is easily accessed by Minecraft/Mojang support personnel.