I'm using FME Desktop 2020.2. I have added a CAT reader and set the boundaries and attribute names. I needed to change the attribute names so I used Update Feature Types - this was correctly reflected in the reader on the workspace, all of the new attribute values are displayed. However, if I go back to the Update Feature Types to make any other changes I'm shown the original attribute names and attribute types from when the CAT reader was added. It did not save the changes correctly.
I noticed an earlier post about this which was resolved in 2016, so not sure if this is similar or if there is something else I'm missing. Thanks for the help!