I had a case open with support for this exact issue and it never really got figured out. It would happen every few days where my location was set as default and it would un-default itself on its own. They sent me a test VTZ file to try and it didnt do it with theirs, so I loaded my original vtz back in and the problem stopped so I didnt really get an explanation why this is happening. Maybe remove and re-add your weather widget??
If you engage support again my case# was?210310-000467 although not sure if it will help.?
