Having the same issue on my newly reset server. Built a water flush mob trap using one of Ethos' hopper timers, and this issue appeared in 1 chunk right in the center of my spawn chunks. I have not used the /setworldspawn command.
However, the mob trap is well outside of the 12x12 chunk area and is the only structure that contains a redstone clock; there is quite literally zero redstone within the 12x12 area.
Like everyone else has said, disabling the clock fixed the issue immediately.
Having the same issue on my newly reset server. Built a water flush mob trap using one of Ethos' hopper timers, and this issue appeared in 1 chunk right in the center of my spawn chunks. I have not used the /setworldspawn command.
However, the mob trap is well outside of the 12x12 chunk area and is the only structure that contains a redstone clock; there is quite literally zero redstone within the 12x12 area.
Like everyone else has said, disabling the clock fixed the issue immediately.