When I fix the 1st column, the entire top header (headers of all columns) gets fixed also.So while scrolling horizontally, the headers don't move left/right along with the contents.
How do I fix just the 1st column (ofcourse, along with it's header), keeping the rest of the grid scrollable?
If the not-fixed headers aren't scrolling along with their corresponding data, then there's something not correct. It's not clear whether this is a bug or something not set up correctly.
I suggest you submit a support request so that a Developer Support Engineer can look into this further. The best thing that you can provide is a sample project that we can run and debug which reproduces this behavior. It will also help our research if you confirm what browser you are using.