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Joe, https://groups.google.com/a/hycom.org/d/msg/forum/S-eMRyZ9180/8M23JBJTBgAJ We too had a similar issue with WMS that no one really "pointed out to me" for our "aggregated" datasets until I read this WMS "Limitations" clause at the bottom of this page, http://docs.geoserver.org/stable/en/user/data/cascaded/wms.html#limitations One of them being certain dimensions, like "time" cannot be used with "external WMS"... quote from "Limitations" at the bottom: * Extra request parameters (time, elevation, cql_filter, etc.) cannot be used. So unless your dataset aggregation with the WMS service enabled *worked* in the previous 4.x release of THREDDS (ours 4.x THREDDS at HYCOM.org does exactly as yours does - only returning the last time slice in the aggregation), and assuming there was no major update to WMS in v5 of THREDDS, then this remote/external WMS limitation should still persist. i.e., in summary, you should only expose/enable the WMS service for individual "single time" datasets and not for aggregations with multiple time slices. Someone, please correct me if I am wrong.
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