Hi there @Jesse1956, welcome aboard to our Community. You are right and rest assure this is the way it works your Dashboard. The weekly report works independently from your week exercise as you mentioned before and will be always from Monday to Sunday.
However you can controlled when is going to start the week for your exercise. On your Dashboard settings, by selecting when is going to start your week it will vary from Sunday to Saturday or from Monday to Sunday. This option wont make any difference on how your data is recorded or synced with your Dashboard or will interfere with your weekly report.
Hope this helps and if you have more questions, let me know.
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