Duplicate content in Webmaster tools, is this bad?

[EcommerceSite]

We launched a new site, and we did a 301 redirect to every page. I have over 5k duplicate meta tags and title tags. It shows the old page and the new page as having the same title tag and meta description. This isn't true, we changed the titles and meta description, but it still shows up like that. What would cause that?

[SanketPatel]

Hi,

Wait for some time, Let the Google index all new pages.

Have you redirected all old pages to respective new pages ? Have you submitted the XML sitemap to Google through webmaster ?  Is it possible to share few URLs ?

[EcommerceSite]

Originally there was a mistake and they were 302s, that has now all been fixed but I don't like seeing that many errors. We have submitted the sitemap and have done that again recently. I wish I could share some urls but I can't. Do you think it has to do with them previously being 302s?

[SanketPatel]

As you have done all 301 redirect so you don't have to worry about it because for search engine that pages is permanently redirected to other which was earlier temporary. Now search engine start indexing your new URLs and start removing old URLs from search index as they don't exist now.

[EcommerceSite]

That is what I figured but I am still showing over 5k duplicates for titles and meta descriptions