We have made some changes to the way wear rates are calculated in the PDS database. There used to be a software job that would run every 15 minutes to refresh the calculations. This was becoming increasingly slower and tying up the servers, so we changed the calculations to be run just when wear results are stored or updated. This means you should see the correct results straight away, and hence there is no longer any need for the refresh button. The summary should also show straight away. If you aren't seeing your updated results in the Wear Profile and Trend Report, or any other issues, please contact us at firstname.lastname@example.org.