Column Width WP admin (back end)

Hi,

Within WP admin (backend)> CoursePress> the table for my courses> the column width for Column heading is one character wide.

For example, the column heading is titled T, rather than ‘Title’. It overlaps the next column heading ‘Categories’.
The rows below are the same in the ‘Title’ column. For example, the first course title ‘Step 1’ is displayed like:

S
t
e
p
1

It makes it particularly difficult to make any changes to any of the courses. I am using Zerif Light not the Coursepress theme, as the courses make up one part of a wider eco system and I have other membership/payment wall plugins. Displayed on Chrome on Windows 10.

Please help.