Thank you for reporting this, we have not had this reported before that I am aware of.
How are you doing this “open” of LightBurn? Window and UI layout can be rearranged, and the new locations for this layout should be saved when you quit, and retained upon launching LightBurn the next time.
Please tell us more about your computer, the OS you are using, the version of LightBurn and the step-by-step process you do to get this result. We are trying to reproduce this described behavior and can not do so here. Please provide any details to help us reproduce. 
Please explain this process as well. I am seeing a different result when I click Save on a new file.
