i am having problems with my guardian farm. We build this huge thing in about a month on our server and now it won't work properly. I hope someone of you got any idea how to fix it.
Setup: We dug out the complete guardian temple, put in layers of water which can be deactivated by dispensers with buckets. At the bottom, everything funnels in a central row, filled with lava where the guardians fall down and die from the fall damage + lava burn. The drops are collected by immense hopper arrays. The complete setup was lit up in about 128 area by me in 4-5 days work. Therefore i get about maximum of 6 monsters spawning in the complete area (which are 99% squids)!
Behaviour: Once i start the farm i get up to 20-30 entity spawns. All guardians. They give some drops and everything is fine. This is all ok for about 1-2 minutes after that the map just stops spawning new guardians. And even then, 20-30 guardians is VERY low compared to what should be possible with this setup.
I added the green-glass minecart track where i afk in in a try to give the whole farm a ton of chunk updates in order to renew spawns. This improved the situation so about 5-10 minutes i get spawns of about 20-30 guardians. After those 5-10 minutes guardians will just stop spawning.
This farm was built on our server and is now played by me in singleplayer, because the server stopped. I use hard difficulty and i should get TONS of drops - nothing happening.
Questions: - What could cause this behaviour? - How can i fix it?
EDIT: I use MC 1.8.3 and i have a pretty bad PC / CPU. Maybe https://bugs.mojang.com/browse/MC-42053 is the reason and there is nothing i can do to fix it?
Screenshots with flying: