Applies to: BLAZE

Issue Summary

In the BLAZE update package 1.2.209, the server synchronization keys were changed. These new keys do not work with other versions. The update may finish without errors, but servers running different versions may fail to sync. This can cause temporary data differences between servers.

Resolution

To prevent the update error:

• When updating from 1.2.209 to a newer version, update all clustered servers at the same time. This prevents data differences caused by servers running different versions.
   
• If you update only some servers first, servers with different versions may not sync correctly until the update is finished on all servers. 
  
  During this time, data may be temporarily different between servers. To avoid problems, do not make configuration changes, such as adding devices, until the update is complete. Update all servers as soon as possible. After all servers are on the same version, the data will sync automatically.