I think no one actually explained how to reproduce the context menu bug: 1. Create a folder and add containers to it 2. Enable preview advanced context menu: 3. Click on a container a menu will open without the dropdown options: Workaround which works for me that might hint where is the problem: 4. Expand the folder and start/stop any container on that folder and the dropdown menu is fixed until the page is refreshed:   Hope that helps, 
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