hi, this might not just be for survival, but when you clear your plot and you have grown pumpkins on it they start to act weird. If you right click them they keep on moving down and up the plot. Just wanted to put this out there, and thanks.
Not saying this is the incorrect place to post this but I am merely suggesting that you gather evidence of this occurrence and report it by clicking here. By clicking the previous link you will be brought to the bug-reports section where you can post anything that appears to be glitched/bugged or if something doesn't appear normal as it was before. You can get recording software such as FRAPS and Bandicam so you may record this happening so the server's administrators can fix the issue. Fraps and Bandicam are both free to use and both great options for recording your gameplay.