I recently overwrote a large amount of data on our servers by editing a block, adding a default value, then clicking "Synchronize All". The default value replaced the attributes for all the features on the server. Doh! (Luckily we were able to recover from backup). Apparently this is not the way to update your blocks after editing them. (I was using AFA 370, we are now on 400)
My question is: What is the best way to refresh your data in ACAD after editing blocks? I often need to edit the blocks many times before I am satisfied. Currently I remove the layer the re-add it. Is there a better way?