Can't move the columns in the 'Tags' window. Sketchup Pro 2022

Strange thing happened recently—I can’t move the columns in the ‘Tags’ window. They have all gone to the left side and only the first several letters are visible. My cursor turns to a vertical line at the headings, just like any spreadsheet of database layout function, but the vertical bar has no effect on the headings, making them wider.

Thanks in advance.