Cant add field to image file that shows in editor

hi all,
i have a blueprint files/image. Now when I add a image block in my editor, I can see the default fields. But I cant see any custom field from my blueprint I have added.
Now if I go to the dedicated page for editing the image in kirby, I can see the fields.
How can I get that field to show up in the actual page editor for the image block I am adding?
I have added the field to every blueprint I have, and tried adding default ones, but the field never shows in the block editor.

The file fields and the fields for a block are not connected. You can learn more about how to extend the block fields here: Customizing core blocks | Kirby CMS

that but that page didnt really help. I tried editing every file/image/block blueprint file without success.

Please be more specific (step by step) what you tried, so that we can point out where it went wrong.