Update drawing view, but NOTHING changed. WHY?

Hello All,

I'm searching for a solution for just saving my drawing/part/assembly as it is, but...when I close my drawing and reopen it, it will ask me to rebuild the flat pattern view. Is there a way to figure out what exactly has changed in this view? Is it because it is a flat pattern?

Please let me know, it driving me crazy!

Best Regards,

Bram

SolidworksDrawings And Detailing