execute align xz run tp @s ~0.5 ~ ~0.5
kill @n[tag=join_blue_location]
execute at @s run summon marker ~ ~ ~ {Tags:["join_blue_location","new"],CustomName:{"color":"blue","text":"join_blue_location"}}
tag @n[tag=new] remove new
tellraw @s {"text":"Placed new join_blue_location","color":"blue"}