Please elaborate.
Try using pistons with a 1 tick delay, with dispenser
attached!
This issue is invalid. This is a feature request, and not an actual bug.
Do you have many mobs gathered in one area? If so, then the game might stop spawning monsters because there are too many mobs in one chunk.
I am pretty sure that this is intentional.
Can you send us a screen recording or a screen shot to help us better understand the issue?
There is not enough context to this bug. Screen shots or videos would be appreciated.
Since your game was modified, this bug is invalid.
Is this a bug, or a feature request?
Maybe you should post it on Youtube and give us the link
Can we have a screen shot with the f3 menu?
Can you give us steps to reproduce?
Is the server very laggy? Try running /tps.