Data export within Data compare (hide columns for same values)

I'm working with TOAD data point 64 bit on Windows 10 and Excel 2016. I have an issue within the data compare export (excel file). When data compare is finished, I want to look at the different records (show different records). Due to I only want to see the columns with different values, I use the functionality (hide columns where all the values are the same in both tables). After all, I want to export these different columns (and only the different columns). When now using the excel export function all the columns where exported and not only the differents ones. This makes the exported files very large not very readable.
While working with TOAD data point version 3.3 this works fine, only different columns were exported.
My question is now: Is this a new functionality or a bug?
Thanks for any help and regards,