As a suggestion, please remove the URL links in your attached spreadsheet. You are providing your company details in those URL's, as well as names of some staff working for your company, not to mention some of the projects you are currently working on. Ironically, one project is in relation to Cyber Resilience.
As Urmas indicates, additional information is required, as the spreadsheet doesn't even provide column headers, so makes it challenging in aswering your question, as it is unknown what those columns relate to, or how the data was obtained.
I disagree with your statement "SA is showing up twice for the same project (it's impossible to submit 2 lots of hours for the same week)". If SA has been assigned to multiple tasks on the same project, they can allocate hours against any of those tasks (subject to required conditions being met on timesheeting).