Window cranks broken
Thanks for reaching out! It appears the window operators on both windows have become stripped. That said, you'll need to replace the entire operator.
I'll need to see photos of the operator arms to identify their replacements. You may need to manually open the window to get the photos.
Please let me know if you have any questions.
Thanks for the additional photos. Your window operators can be replaced with the 39-146 and 39-147 Andersen Window Cranks. I'm confident they should be a match, but be sure to double check the dimensions.
You'll need either the 39-160 or the 39-161 to replace the link arm brackets. The compatible crank handle is the 39-286.