Rounded corner functionality disappeared in Indesign
Hi.
I am running this version of InDesign:

Have been rounding the corners of rectangle and square shapes for years but all of a sudden the program will not let me do so. When I try to do it, the little yellow square that is supposed to appear below the upper right corner does not appear. I also tried to do it using this functionality:

... and by the "show round corners" function. Nothing works. I even tried to go back to former documents where I had round cornered rectangles and cut and pasted them into the new document, but the round corners simply disappear when I paste the rectangle into the new doc.
HELP?
Thank you.
