i have a couple problems with my ianxofour shulker farm.
i've got the armor stand in, the button below the banner, and i have the reloading portal 10 blocks above the farm.
unfortunately i've gone to the end now 5 or 6 times to replace the shulker. NOT through the reloader because when it goes from the nether roof to the overworld, it won't go into the minecart, it goes onto the inside of the portal frame. i've done my best to button the elevated portal as much as possible, but it just likes to sit inside the portal in the overworld.
when i finally do manage to reload the shulker, it makes maybe 5 duplicates that make it to the nether before it teleports out of the chamber and doesn't leave a duplicate behind. I've buttoned the edges of the block walls and the portal frames. the farm does technically work for all of two minutes before the kill chamber shulker gets out. i don't know what i'm doing wrong.