Community Tip - You can change your system assigned username to something more personal in your community settings. X
When you open the mashup interface, the grid control above is lost for no reason.
@pliu1 is this similar to you other question asked here https://community.ptc.com/t5/ThingWorx-Developers/The-upper-grid-control-for-the-mashup-interface-is-lost-without/m-p/518644#M14254
