Custom Controls don't work :'(

I am adding custom control to my rectangle node to the user tab, but when i do it, they don't show up for whatever reason? Below the values i've entered AND the user tab.

https://preview.redd.it/ouenc49dw9fe1.png?width=1919&format=png&auto=webp&s=3471284c3909200837d4213371c1a1b443da7751

https://preview.redd.it/8go9n4pxv9fe1.png?width=1054&format=png&auto=webp&s=625506d8cc9b768e449f44385e55791e61d753a5

https://preview.redd.it/y6ewt53zv9fe1.png?width=426&format=png&auto=webp&s=0c6d3f6dad965dcc7b3bcf72edd6552a5293a71e