Hi, We're running a private Cloudman Galaxy on AWS for small-scale proteomics work. Lately the whole History of the main user id we use has occasionally disappeared, ie. on login the History is empty. The datasets aren't hiding in "Deleted Datasets". They appear to still be there in /mnt/galaxyData/files/000. They're not in the Anonymous (not logged in ) id. They're not in another id. The data doesn't come back later. We reload the latest datasets in use and the numbering in the history restarts from 1. We're running the most basic config, with the simple single-threaded database. Nothing of interest seems to be in the various Cloudman logs. I've searched the archives for "lost/deleted/disappeared datasets/history" etc but nothing useful turned up. This is our rev status .. UBUNTU /mnt/galaxyTools/galaxy-central $ hg summary parent: 8116:ecd131b136d0 tip libraries: fix in query for 'datasets_are_public' branch: default commit: 2 modified, 268 unknown update: (current) This is a poor fault report but .. appreciate any pointers here. Many thanks ... -- Greg Edwards, Port Jackson Bioinformatics gedwards2@gmail.com