When I am importing pdf - it automatically goes to FigJam. I need to work in Figma design or Slides, I copy graphs to Figma design but all elements have corner radiuses (3). I need 0, I change to 0, looks good, as soon as I change size/scale - reverts to 3 corner radius. Elements show up as “shape with text” (even though there is no text), there is no option to detach in menu, shortcuts and plugins to detach, flatten do not work. 

What is the best way to:
a) detach FigJam layers so they don’t revert back
b) is there a way to control to import to Figma design or Figma Slides directly (drag and drop results in failure, import via button always imports to FigJam) to avoid this problem

Thank you for any help