You may be looking at stale data due to the way you have your project configured. The screen shot provided shows you have several devices configured under a single channel. This type of set up serializes the communications which means the server can only communicate with one of the devices in the channel at any given time. If you separate out the devices into their own channels, you will receive updates on all the devices simultaneously. Here is a link to the Kepware Knowledge Base article that covers this:
