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I couldn't replicate the issue by any of the actions reported in the QAs, but I found a different way which also throws the exception: In the Projects/Datasets tree switch to Group Display (i. e. disable \"Display Users\"). Expand the groups. Go to search tab. Search for any image. Select an image in the search results view. Open the \"Located in\" tab on the right hand side metadata panel. Double click on the dataset. This will trigger the exception. 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