This was the first I'd used it in J3.2 and I got an error message.
The developer replied promptly to my request, giving the solution, adding a column to the database.
The task being a bit beyond me I accepted his generous offer to do it for me. Job completed in a short time. Excellent service, especially considering I'm using the free version!
I always use the Column Gallery theme which is fully responsive and suits my needs very well.