Michael, just don't kick me.
Now I am struggling with the second riddle:
I downloaded the file that you fixed for me and continued working on it.
But now - for some reason - it was on this solid that the Fillet option stopped working.
I create a cube next to it - it works on it, and on my model - the cursor rotates in anticipation and that's it.
and - on any edge, even the simplest. (((