Upgrade to Opera 133 if you haven't and try again.

If still no go, for bookmarks, in Chrome, goto the URL chrome://bookmarks and click the 3 dots at the top right of the page and export your bookmarks to an HTML file. Then, in Opera, goto the URL opera://settings/importData, select "Bookmarks HTML file" in the drop-down and point it to the HTML file. Then, goto the URL opera://bookmarks and go into the "Bookmarks Bar" folder. You should then see your imported bookmarks where you can move them to where you want if you don't want them there.

For passwords, in both Chrome and Opera, goto the URL chrome://password-manager/settings. In Chrome, export your passwords to a CSV file. In Opera, import that CSV file.