User can see fields but can't edit them
Sometimes you can end up on a board where you can see Amazing Fields values, but can not edit them. The most common cause for this is that you are not a full member of the board. This can happen when you are a member of a workspace which allows you to see a board, but you are not actually shared on the board as a member.
Here is an example of what this can look like:
Note how the icon of the current user in the upper right is not also in the list of icons showing people that are members of the board. If you want access to edit on this board you either need to click "Join Board" or have someone add you to the board as a full editor.