Hello Guys, I have recently change our website design and link structure and redirect all old backlinks to new urls using 301 redirect. More than 4 weeks are passed since our new site is online. But google is showing issue in GWT under the optimization tab > HTML Improvements. It is showing me duplicate title & Meta errors. When I check the sites urls which are duplicate it will showing old urls and new urls. GWT tool is updated it's data more than 4 to 5 times since I changed our site but still the issue is showing in HTML Improvement tabs. I have attached the image of webmaster tool error. Please help guys its really irritating that tool still showing this error.
Don't trust the webmaster tools data when it comes to HTML improvement. I know that on my store i have fixed the problems back 1 month ago and there still are showing duplicate title tags and descriptions.
I hope you hadn't resubmitted the sitemap after design / redirection., try to resubmit sitemap.xml and see the result., if you again facing the same issue.., then i agree with @imfusa's statement
Feel Free to send me a MSG if you would like for me to run your site through some tests to check it out....