When using a dispenser to place a shulker box that i'v renamed with an anvil, the shulker box place by the dispenser hasn't got the name given but the normal "shulker box" name. cf. the screenshots
When using a dispenser to place a shulker box that i'v renamed with an anvil, the shulker box place by the dispenser hasn't got the name given but the normal "shulker box" name. cf. the screenshots
I can only reproduce this by doing the following:
Rename Box in Anvil
Immediately put Box in Dispenser
Dispense Box
If I place and pick up the box (with or without placing items in it), before putting it in the dispenser, then it retains the custom name.
Is that what you're seeing?