its just that ur minecraft files got messed up a bit, itl happen when updating, not a bug, i dont beleive
probably lag or game tick messup, but who knows
those r just particle affects, blocks do not effect particles nor vise versa, and besides its modded server, u need vanilla evidence
thats ur pc not mc
its just that ur minecraft files got messed up a bit, itl happen when updating, not a bug, i dont beleive