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1. One possible source of the bug is that you adding files dynamically, presumably with recheckEvery set. So in the NcML, we are first trying it without dynamic files (no recheckEvery). 2. The test I always make is to put it into the Grids Tab. Then press the "Grid Viewer" button (the red alien image), and the Grid Viewer window comes up. Press the "redraw" button (the red alien image again) and yu shuld see a visualiation. Move through different slices with the field selector widgets in the top toolbar. Right click on the field selectors to get a VCR widget where you can loop. If things look good, then the aggregation itself is working. To keep going, look at: http://www.unidata.ucar.edu/projects/THREDDS/tech/tutorial/NcML.htm#debug Ticket Details =================== Ticket ID: XBA-228331 Department: Support THREDDS Priority: Normal Status: Open