TreeGrid not reloading

I have TreeGrid that loads xml file created from a database with no problems. When I add a new record to the table (not using DataProcessor) and then do a clearAndLoad function with the same xml file but the grid shows the same data. I have verified the xml file contains the new data but the grid does not display it.
When I do a clearAndLoad does not the original data get destroyed? Where is the old data coming from? If I close and open the grid again the data is fine.
I have also tried a clearAll and Loadxml but same result. The only way I can get the grid to show the new data is to destroy and re-create the grid. I am using professional version 3.6

Unfortunately the issue cannot be reproduced locally.
Please, make sure that you’re not reloading the grid from the browser cache.

Is there a way to tell if it is loading from cache. Is there a way to control it programmatically?

Unfortunately it’s not available to control the cache from a dhtmlxgrid. Please, check your browser settings.
Also you may try to use updateFromXML() method:
docs.dhtmlx.com/doku.php?id=dhtm … atefromxml