ok I did a bit more playing around, turns out it is spawning the mobs... but at the incorrect location, with a pig spawner i placed it and all the pigs are spawning around the correct z coordinate but the pigs are spawning at x = 0 regardless of where the spawner is placed
ok I did a bit more playing around, turns out it is spawning the mobs... but at the incorrect location, with a pig spawner i placed it and all the pigs are spawning around the correct z coordinate but the pigs are spawning at x = 0 regardless of where the spawner is placed