@bruno, I would still call it a bug because I did not run ebolarebuild and I also did not know what this text was about. It should never be shown over the command icons. I understand what you are saying, it is the content of the note field for residu 1. Still, it should not display like this. Thank you for clarifying.
Indeed, I agree than in general, commands should never be hided by anything else that cannot be moved. I think there are other examples like this.
Another similar problem I face: in the view menu, with a small screen, it's impossible to click on above options, neither to navigate in order to see them. There should be some windows moving options or similar generic tool that allows us to move different windows in order to be able to access what we need (basically: commands !)