I have two guesses:
- The file is not checked out and the fields are not version free.
- The controls are set to be gray through card control logic. (Control -> Control Logic)
Yes, the file is checked in, but why is some fields gray and some is not?
You normally would use the system to get information from approved and checked in files, then the data should be easy to read and not gray. It also seems that it's only fields where you select value which is gray, fields where you type values are not.
There is no control logic connected to this fields.