Not able to configure PTC.Factory.KEPServerEX.C_ DeviceList_8.4.0-01
I am following the example in the Thingworx-customization-guide-8.4.1 on page 94 the example shows how to change the device list that is displayed in the Control Advisor.
I am however unable to change the grid in the mashup. I tried doing it on the existing mashup as well as a duplicate. In both cases I am unable to save any changes.
Anyone else maybe had the same problem?

