Error occurs when separating columns

Hi! I was trying to separate a column of a table and store it into a new dataset but when I executed the command to view only that particular column, the result didn't appear in a table format (with only "applied" column) but in a data structure (see Pic). Did I do anything wrong?

Thank you in advance!

In order to help with this, we will need a reproducible example so that we can reproduce the behavior ourselves and see what is going on.