WHY!?!?!?!?

TOTAL NOOB

This part was made from another tube. I removd the radius in the sketch because i forgot to dimension before i added it, and I need the length to the apex.

I changed the plane 4 and Cut-Extrude3, as well as SketchNotch1 in Cut-Extrude1

Now if I add the radius back to my tube, part of it disappears.

Any help would be appreciated.

Thanks