Hey there, sorry to hear you’re having trouble with scale settings!
It’s hard to be sure what’s happening through the screenshot you’ve provided and not seeing what’s happening on the canvas, but please reach out to the support team directly via this form for help: https://help.figma.com/hc/en-us/requests/new
Be sure to use your Figma account email, include a link to the file and a full screen recording if possible, and share it with support-share@figma.com so, they can take a closer look.