Some of my Hoppers don't work correct. Very often items fly above the Hoppers but nothing happened. Hoppers are not full and when i remove and place them new, some minutes later the same bug. They work a few minutes and then do not go again very Long. Server restart helps to solve the bug a while. @StLee has seen this
It seems whenever I get out of range of my hoppers and the chunk unloads the hopper gets disabled. The only way to re-enable the hopper is to mine it and place it back in the same position. This bug makes any kind of automated farm useless.
Same thing happens to me. It only happens if I walk out of the area, if I tp away and tp back the hoppers still work. Mining and replacing the hoppers seems to be the only solution so far.
